diff --git a/cmd/keyaddr/handlers.go b/cmd/keyaddr/handlers.go
index 05b4689..19362fe 100644
--- a/cmd/keyaddr/handlers.go
+++ b/cmd/keyaddr/handlers.go
@@ -9,14 +9,16 @@ package main
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
+	"encoding/hex"
 	"fmt"
 	"math"
 	"regexp"
 	"syscall/js"
 
+	"github.com/ndau/ndaumath/pkg/address"
 	"github.com/ndau/ndaumath/pkg/keyaddr"
+	"github.com/ndau/ndaumath/pkg/signature"
 )
 
 // exit will quit the go program, causing the application to no longer respond to function calls.
@@ -72,6 +74,136 @@ func newKey(this js.Value, args []js.Value) interface{} {
 	return nil
 }
 
+// JS Usage: newEdKey(cb) --> no args
+func newEdKey(this js.Value, args []js.Value) interface{} {
+	go func(args []js.Value) {
+		logDebug("newEdKey")
+
+		// clean args
+		callback, _, err := handleArgs(args, 0, "newEdKey")
+		if err != nil {
+			return
+		}
+
+		// do work
+		public, private, err := signature.Generate(signature.Ed25519, nil)
+		if err != nil {
+			jsLogReject(callback, "error creating new ed key: %s", err)
+			return
+		}
+
+		pubkeyText, err := public.MarshalText()
+		if err != nil {
+			jsLogReject(callback, "error marshalling new public ed key: %s", err)
+			return
+		}
+
+		privkeyText, err := private.MarshalText()
+		if err != nil {
+			jsLogReject(callback, "error marshalling new private ed key: %s", err)
+			return
+		}
+
+		// Make an map[string]interface{} so syscall will turn it into a js object.
+		obj := make(map[string]interface{})
+		obj["pubkey"] = string(pubkeyText)
+		obj["privkey"] = string(privkeyText)
+
+		// return result
+		callback.Invoke(nil, js.ValueOf(obj))
+		return
+	}(args)
+	return nil
+}
+
+// JS Usage: newEdKey(seed, cb)
+func newEdKeyFromSeed(this js.Value, args []js.Value) interface{} {
+	go func(args []js.Value) {
+		logDebug("newEdKeyFromSeed")
+
+		// clean args
+		callback, remainder, err := handleArgs(args, 1, "newEdKeyFromSeed")
+		if err != nil {
+			return
+		}
+
+		seedString := remainder[0].String()
+		seed, err := hex.DecodeString(seedString)
+		if err != nil {
+			jsLogReject(callback, "error decoding data from hex: %s", err)
+			return
+		}
+
+		// do work
+		public, private, err := signature.GenerateFromSeed(signature.Ed25519, seed)
+		if err != nil {
+			jsLogReject(callback, "error creating new ed key: %s", err)
+			return
+		}
+
+		pubkeyText, err := public.MarshalText()
+		if err != nil {
+			jsLogReject(callback, "error marshalling new public ed key: %s", err)
+			return
+		}
+
+		privkeyText, err := private.MarshalText()
+		if err != nil {
+			jsLogReject(callback, "error marshalling new private ed key: %s", err)
+			return
+		}
+
+		// Make an map[string]interface{} so syscall will turn it into a js object.
+		obj := make(map[string]interface{})
+		obj["pubkey"] = string(pubkeyText)
+		obj["privkey"] = string(privkeyText)
+
+		// return result
+		callback.Invoke(nil, js.ValueOf(obj))
+		return
+	}(args)
+	return nil
+}
+
+// JS Usage: addrFromPublicKey(pubKey, cb)
+func addrFromPublicKey(this js.Value, args []js.Value) interface{} {
+	go func(args []js.Value) {
+		logDebug("addrFromPublicKey")
+
+		// clean args
+		callback, remainder, err := handleArgs(args, 1, "addrFromPublicKey")
+		if err != nil {
+			return
+		}
+
+		pubKeyString := remainder[0].String()
+
+		// do work
+		key, err := signature.ParseKey(pubKeyString)
+		if err != nil {
+			jsLogReject(callback, "error parsing public key: %s", err)
+			return
+		}
+
+		_, ok := key.(*signature.PublicKey)
+		if !ok {
+			jsLogReject(callback, "addresses can only be generated from public keys")
+			return
+		}
+
+		addr, err := address.Generate(address.KindExchange, key.KeyBytes())
+		if err != nil {
+			jsLogReject(callback, "error generating address from key: %s", err)
+			return
+		}
+
+		// return result
+		callback.Invoke(nil, addr.String())
+		return
+	}(args)
+	return nil
+}
+
 // JS Usage: wordsToBytes(language, words, cb)
 // language defaults to en if not specified.
 func wordsToBytes(this js.Value, args []js.Value) interface{} {
@@ -370,7 +502,71 @@ func sign(this js.Value, args []js.Value) interface{} {
 		msg := remainder[1].String()
 
 		// do work
-		sig, err := k.Sign(msg)
+		sig, err := k.SignSecP(msg)
+		if err != nil {
+			logError(fmt.Sprintf("error creating signature: key length: %s, msg: %s, err: %s", len(k.Key), msg, err.Error()))
+			jsLogReject(callback, "error creating signature: %s", err)
+			return
+		}
+
+		// return result
+		callback.Invoke(nil, sig.Signature)
+		return
+	}(args)
+	return nil
+}
+
+// JS Usage: signEdB64(privateKey, base64Message, cb)
+func signEdB64(this js.Value, args []js.Value) interface{} {
+	js.Global().Get("console").Call("log", "sign starting")
+	go func(args []js.Value) {
+		logDebug("signEdB64")
+		// clean args
+		callback, remainder, err := handleArgs(args, 2, "signEdB64")
+		if err != nil {
+			return
+		}
+
+		k := keyaddr.Key{
+			Key: remainder[0].String(),
+		}
+
+		msg := remainder[1].String()
+
+		// do work
+		sig, err := k.SignEdB64(msg)
+		if err != nil {
+			logError(fmt.Sprintf("error creating signature: key length: %s, msg: %s, err: %s", len(k.Key), msg, err.Error()))
+			jsLogReject(callback, "error creating signature: %s", err)
+			return
+		}
+
+		// return result
+		callback.Invoke(nil, sig.Signature)
+		return
+	}(args)
+	return nil
+}
+
+// JS Usage: signEdText(privateKey, textMessage, cb)
+func signEdText(this js.Value, args []js.Value) interface{} {
+	js.Global().Get("console").Call("log", "sign starting")
+	go func(args []js.Value) {
+		logDebug("signEdText")
+		// clean args
+		callback, remainder, err := handleArgs(args, 2, "signEdText")
+		if err != nil {
+			return
+		}
+
+		k := keyaddr.Key{
+			Key: remainder[0].String(),
+		}
+
+		msg := remainder[1].String()
+
+		// do work
+		sig, err := k.SignEdText(msg)
 		if err != nil {
 			logError(fmt.Sprintf("error creating signature: key length: %s, msg: %s, err: %s", len(k.Key), msg, err.Error()))
 			jsLogReject(callback, "error creating signature: %s", err)
diff --git a/cmd/keyaddr/main.go b/cmd/keyaddr/main.go
index dde66df..8c218f4 100644
--- a/cmd/keyaddr/main.go
+++ b/cmd/keyaddr/main.go
@@ -9,7 +9,6 @@ package main
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 /*
 
 Notes:
@@ -35,25 +34,28 @@ import (
 var waitChannel chan struct{}
 
 func main() {
-	js.Global().Get("console").Call("log", "WASM Keyaddr starting")
-
 	waitChannel = make(chan struct{})
 
 	// put go functions in a javascript object
 	obj := map[string]interface{}{
-		"newKey":          js.FuncOf(newKey),
-		"wordsToBytes":    js.FuncOf(wordsToBytes),
-		"deriveFrom":      js.FuncOf(deriveFrom),
-		"ndauAddress":     js.FuncOf(ndauAddress),
-		"toPublic":        js.FuncOf(toPublic),
-		"child":           js.FuncOf(child),
-		"sign":            js.FuncOf(sign),
-		"hardenedChild":   js.FuncOf(hardenedChild),
-		"wordsFromPrefix": js.FuncOf(wordsFromPrefix),
-		"isPrivate":       js.FuncOf(isPrivate),
-		"wordsFromBytes":  js.FuncOf(wordsFromBytes),
-		"fromString":      js.FuncOf(fromString),
-		"exit":            js.FuncOf(exit),
+		"newKey":            js.FuncOf(newKey),
+		"wordsToBytes":      js.FuncOf(wordsToBytes),
+		"deriveFrom":        js.FuncOf(deriveFrom),
+		"ndauAddress":       js.FuncOf(ndauAddress),
+		"toPublic":          js.FuncOf(toPublic),
+		"child":             js.FuncOf(child),
+		"sign":              js.FuncOf(sign),
+		"signEdB64":         js.FuncOf(signEdB64),
+		"signEdText":        js.FuncOf(signEdText),
+		"hardenedChild":     js.FuncOf(hardenedChild),
+		"wordsFromPrefix":   js.FuncOf(wordsFromPrefix),
+		"isPrivate":         js.FuncOf(isPrivate),
+		"wordsFromBytes":    js.FuncOf(wordsFromBytes),
+		"fromString":        js.FuncOf(fromString),
+		"newEdKey":          js.FuncOf(newEdKey),
+		"newEdKeyFromSeed":  js.FuncOf(newEdKeyFromSeed),
+		"addrFromPublicKey": js.FuncOf(addrFromPublicKey),
+		"exit":              js.FuncOf(exit),
 	}
 
 	// Register all functions globally under KeyaddrNS. Either `window` in browsers, or
diff --git a/cmd/keyaddr/tests.js b/cmd/keyaddr/tests.js
index d5f9987..409fa9e 100644
--- a/cmd/keyaddr/tests.js
+++ b/cmd/keyaddr/tests.js
@@ -266,7 +266,7 @@ describe('simple memory test', () => {
     const key = await Keyaddr.newKey(bytes)
     const oldLogLevel = global.KeyaddrLogLevel // save previous log level
     global.KeyaddrLogLevel = global.KeyaddrLogLevelError // turn off excessive logs
-    for (let i = 1; i < 1000; i++) {
+    for (let i = 1; i < 500; i++) {
       const newKey = await Keyaddr.deriveFrom(key, '/', `/44'/20036'/100/${i}`)
       const addy = await Keyaddr.ndauAddress(newKey)
     }
diff --git a/cmd/keyaddr/yarn.lock b/cmd/keyaddr/yarn.lock
index 58f7474..f6be1b8 100644
--- a/cmd/keyaddr/yarn.lock
+++ b/cmd/keyaddr/yarn.lock
@@ -683,11 +683,6 @@ ansi-colors@3.2.3:
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.3.tgz#57d35b8686e851e2cc04c403f1c00203976a1813"
   integrity sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==
 
-ansi-regex@^2.0.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
-  integrity sha1-w7M6te42DYbg5ijwRorn7yfWVN8=
-
 ansi-regex@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
@@ -698,7 +693,7 @@ ansi-regex@^4.1.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
   integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
 
-ansi-styles@^3.2.1:
+ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
@@ -799,19 +794,14 @@ check-error@^1.0.2:
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
   integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
 
-cliui@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
-  integrity sha512-4FG+RSG9DL7uEwRUZXZn3SS34DiDPfzP0VOiEwtUWlE+AR2EIg+hSyvrIgUUfhdgR/UkAeW2QHgeP+hWrXs7jQ==
+cliui@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"
+  integrity sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==
   dependencies:
-    string-width "^2.1.1"
-    strip-ansi "^4.0.0"
-    wrap-ansi "^2.0.0"
-
-code-point-at@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
-  integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
+    string-width "^3.1.0"
+    strip-ansi "^5.2.0"
+    wrap-ansi "^5.1.0"
 
 color-convert@^1.9.0:
   version "1.9.3"
@@ -860,17 +850,6 @@ core-js@^3.2.1:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.2.1.tgz#cd41f38534da6cc59f7db050fe67307de9868b09"
   integrity sha512-Qa5XSVefSVPRxy2XfUC13WbvqkxhkwB3ve+pgCQveNgYzbM/UxZeu1dcOX/xr4UmfUd+muuvsaxilQzCyUurMw==
 
-cross-spawn@^6.0.0:
-  version "6.0.5"
-  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
-  integrity sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==
-  dependencies:
-    nice-try "^1.0.4"
-    path-key "^2.0.1"
-    semver "^5.5.0"
-    shebang-command "^1.2.0"
-    which "^1.2.9"
-
 debug@3.2.6:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
@@ -919,13 +898,6 @@ emoji-regex@^7.0.1:
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
   integrity sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==
 
-end-of-stream@^1.1.0:
-  version "1.4.4"
-  resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
-  integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
-  dependencies:
-    once "^1.4.0"
-
 es-abstract@^1.5.1:
   version "1.14.2"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.14.2.tgz#7ce108fad83068c8783c3cdf62e504e084d8c497"
@@ -966,19 +938,6 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
   integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
 
-execa@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
-  integrity sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==
-  dependencies:
-    cross-spawn "^6.0.0"
-    get-stream "^4.0.0"
-    is-stream "^1.1.0"
-    npm-run-path "^2.0.0"
-    p-finally "^1.0.0"
-    signal-exit "^3.0.0"
-    strip-eof "^1.0.0"
-
 find-cache-dir@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-2.1.0.tgz#8d0f94cd13fe43c6c7c261a0d86115ca918c05f7"
@@ -1012,11 +971,6 @@ function-bind@^1.1.1:
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
 
-get-caller-file@^1.0.1:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
-  integrity sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==
-
 get-caller-file@^2.0.1:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
@@ -1027,13 +981,6 @@ get-func-name@^2.0.0:
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
   integrity sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=
 
-get-stream@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
-  integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
-  dependencies:
-    pump "^3.0.0"
-
 glob@7.1.3:
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
@@ -1105,11 +1052,6 @@ invariant@^2.2.2:
   dependencies:
     loose-envify "^1.0.0"
 
-invert-kv@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
-  integrity sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==
-
 is-buffer@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.3.tgz#4ecf3fcf749cbd1e472689e109ac66261a25e725"
@@ -1125,13 +1067,6 @@ is-date-object@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
   integrity sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY=
 
-is-fullwidth-code-point@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
-  integrity sha1-754xOG8DGn8NZDr4L95QxFfvAMs=
-  dependencies:
-    number-is-nan "^1.0.0"
-
 is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
@@ -1144,11 +1079,6 @@ is-regex@^1.0.4:
   dependencies:
     has "^1.0.1"
 
-is-stream@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
-  integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
-
 is-symbol@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.2.tgz#a055f6ae57192caee329e7a860118b497a950f38"
@@ -1196,13 +1126,6 @@ json5@^2.1.0:
   dependencies:
     minimist "^1.2.0"
 
-lcid@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
-  integrity sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==
-  dependencies:
-    invert-kv "^2.0.0"
-
 locate-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
@@ -1211,11 +1134,16 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash@^4.17.11, lodash@^4.17.13:
+lodash@^4.17.13:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
 
+lodash@^4.17.15:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 log-symbols@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
@@ -1238,27 +1166,6 @@ make-dir@^2.0.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
-map-age-cleaner@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz#7d583a7306434c055fe474b0f45078e6e1b4b92a"
-  integrity sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==
-  dependencies:
-    p-defer "^1.0.0"
-
-mem@^4.0.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
-  integrity sha512-qX2bG48pTqYRVmDB37rn/6PT7LcR8T7oAX3bf99u1Tt1nzxYfxkgqDwUwolPlXweM0XzBOBFzSx4kfp7KP1s/w==
-  dependencies:
-    map-age-cleaner "^0.1.1"
-    mimic-fn "^2.0.0"
-    p-is-promise "^2.0.0"
-
-mimic-fn@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
-  integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
-
 minimatch@3.0.4, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
@@ -1276,17 +1183,29 @@ minimist@^1.2.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-mkdirp@0.5.1, mkdirp@^0.5.1:
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
+mkdirp@0.5.4:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.4.tgz#fd01504a6797ec5c9be81ff43d204961ed64a512"
+  integrity sha512-iG9AK/dJLtJ0XNgTuDbSyNS3zECqDlAhnQW4CsNxBG3LQJBbHmRX1egw39DmtOdCAqY+dKXV+sgPgilNWUKMVw==
+  dependencies:
+    minimist "^1.2.5"
+
+mkdirp@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
   dependencies:
     minimist "0.0.8"
 
-mocha@^6.2.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-6.2.0.tgz#f896b642843445d1bb8bca60eabd9206b8916e56"
-  integrity sha512-qwfFgY+7EKAAUAdv7VYMZQknI7YJSGesxHyhn6qD52DV8UcSZs5XwCifcZGMVIE4a5fbmhvbotxC0DLQ0oKohQ==
+mocha@^6.2.3:
+  version "6.2.3"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-6.2.3.tgz#e648432181d8b99393410212664450a4c1e31912"
+  integrity sha512-0R/3FvjIGH3eEuG17ccFPk117XL2rWxatr81a57D+r/x2uTYZRbdZ4oVidEUMh2W2TJDa7MdAb12Lm2/qrKajg==
   dependencies:
     ansi-colors "3.2.3"
     browser-stdout "1.3.1"
@@ -1300,7 +1219,7 @@ mocha@^6.2.0:
     js-yaml "3.13.1"
     log-symbols "2.2.0"
     minimatch "3.0.4"
-    mkdirp "0.5.1"
+    mkdirp "0.5.4"
     ms "2.1.1"
     node-environment-flags "1.0.5"
     object.assign "4.1.0"
@@ -1308,9 +1227,9 @@ mocha@^6.2.0:
     supports-color "6.0.0"
     which "1.3.1"
     wide-align "1.1.3"
-    yargs "13.2.2"
-    yargs-parser "13.0.0"
-    yargs-unparser "1.5.0"
+    yargs "13.3.2"
+    yargs-parser "13.1.2"
+    yargs-unparser "1.6.0"
 
 ms@2.1.1:
   version "2.1.1"
@@ -1322,11 +1241,6 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
-nice-try@^1.0.4:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
-  integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
-
 node-environment-flags@1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/node-environment-flags/-/node-environment-flags-1.0.5.tgz#fa930275f5bf5dae188d6192b24b4c8bbac3d76a"
@@ -1355,18 +1269,6 @@ node-releases@^1.1.29:
   dependencies:
     semver "^5.3.0"
 
-npm-run-path@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
-  integrity sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=
-  dependencies:
-    path-key "^2.0.0"
-
-number-is-nan@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
-  integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
-
 object-inspect@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.6.0.tgz#c70b6cbf72f274aab4c34c0c82f5167bf82cf15b"
@@ -1395,37 +1297,13 @@ object.getownpropertydescriptors@^2.0.3:
     define-properties "^1.1.2"
     es-abstract "^1.5.1"
 
-once@^1.3.0, once@^1.3.1, once@^1.4.0:
+once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
   dependencies:
     wrappy "1"
 
-os-locale@^3.0.0, os-locale@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
-  integrity sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==
-  dependencies:
-    execa "^1.0.0"
-    lcid "^2.0.0"
-    mem "^4.0.0"
-
-p-defer@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
-  integrity sha1-n26xgvbJqozXQwBKfU+WsZaw+ww=
-
-p-finally@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
-  integrity sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=
-
-p-is-promise@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
-  integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
-
 p-limit@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.2.1.tgz#aa07a788cc3151c939b5131f63570f0dd2009537"
@@ -1460,11 +1338,6 @@ path-is-absolute@^1.0.0:
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
   integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
 
-path-key@^2.0.0, path-key@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
-  integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
-
 path-parse@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
@@ -1499,14 +1372,6 @@ private@^0.1.6:
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
   integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
-pump@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
-  integrity sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==
-  dependencies:
-    end-of-stream "^1.1.0"
-    once "^1.3.1"
-
 regenerate-unicode-properties@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/regenerate-unicode-properties/-/regenerate-unicode-properties-8.1.0.tgz#ef51e0f0ea4ad424b77bf7cb41f3e015c70a3f0e"
@@ -1560,11 +1425,6 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
-require-main-filename@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
-  integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
-
 require-main-filename@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
@@ -1597,23 +1457,6 @@ set-blocking@^2.0.0:
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
 
-shebang-command@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
-  integrity sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=
-  dependencies:
-    shebang-regex "^1.0.0"
-
-shebang-regex@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
-  integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
-
-signal-exit@^3.0.0:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
-  integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
-
 source-map-support@^0.5.9:
   version "0.5.13"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.13.tgz#31b24a9c2e73c2de85066c0feb7d44767ed52932"
@@ -1637,16 +1480,7 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
-string-width@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
-  integrity sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=
-  dependencies:
-    code-point-at "^1.0.0"
-    is-fullwidth-code-point "^1.0.0"
-    strip-ansi "^3.0.0"
-
-"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.1:
+"string-width@^1.0.2 || 2":
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
@@ -1654,7 +1488,7 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string-width@^3.0.0:
+string-width@^3.0.0, string-width@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
   integrity sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==
@@ -1679,13 +1513,6 @@ string.prototype.trimright@^2.0.0:
     define-properties "^1.1.3"
     function-bind "^1.1.1"
 
-strip-ansi@^3.0.0, strip-ansi@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
-  integrity sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=
-  dependencies:
-    ansi-regex "^2.0.0"
-
 strip-ansi@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
@@ -1693,18 +1520,13 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
-strip-ansi@^5.1.0:
+strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
   integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==
   dependencies:
     ansi-regex "^4.1.0"
 
-strip-eof@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
-  integrity sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=
-
 strip-json-comments@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
@@ -1769,7 +1591,7 @@ which-module@^2.0.0:
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
-which@1.3.1, which@^1.2.9:
+which@1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
@@ -1783,88 +1605,54 @@ wide-align@1.1.3:
   dependencies:
     string-width "^1.0.2 || 2"
 
-wrap-ansi@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
-  integrity sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=
+wrap-ansi@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-5.1.0.tgz#1fd1f67235d5b6d0fee781056001bfb694c03b09"
+  integrity sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==
   dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
+    ansi-styles "^3.2.0"
+    string-width "^3.0.0"
+    strip-ansi "^5.0.0"
 
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
   integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
 
-"y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
+y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
   integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
 
-yargs-parser@13.0.0:
-  version "13.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.0.0.tgz#3fc44f3e76a8bdb1cc3602e860108602e5ccde8b"
-  integrity sha512-w2LXjoL8oRdRQN+hOyppuXs+V/fVAYtpcrRxZuF7Kt/Oc+Jr2uAcVntaUTNT6w5ihoWfFDpNY8CPx1QskxZ/pw==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
-
-yargs-parser@^11.1.1:
-  version "11.1.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-11.1.1.tgz#879a0865973bca9f6bab5cbdf3b1c67ec7d3bcf4"
-  integrity sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==
+yargs-parser@13.1.2, yargs-parser@^13.1.2:
+  version "13.1.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"
+  integrity sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==
   dependencies:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
-yargs-parser@^13.0.0:
-  version "13.1.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
-  integrity sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
-
-yargs-unparser@1.5.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/yargs-unparser/-/yargs-unparser-1.5.0.tgz#f2bb2a7e83cbc87bb95c8e572828a06c9add6e0d"
-  integrity sha512-HK25qidFTCVuj/D1VfNiEndpLIeJN78aqgR23nL3y4N0U/91cOAzqfHlF8n2BvoNDcZmJKin3ddNSvOxSr8flw==
+yargs-unparser@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/yargs-unparser/-/yargs-unparser-1.6.0.tgz#ef25c2c769ff6bd09e4b0f9d7c605fb27846ea9f"
+  integrity sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==
   dependencies:
     flat "^4.1.0"
-    lodash "^4.17.11"
-    yargs "^12.0.5"
+    lodash "^4.17.15"
+    yargs "^13.3.0"
 
-yargs@13.2.2:
-  version "13.2.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.2.2.tgz#0c101f580ae95cea7f39d927e7770e3fdc97f993"
-  integrity sha512-WyEoxgyTD3w5XRpAQNYUB9ycVH/PQrToaTXdYXRdOXvEy1l19br+VJsc0vcO8PTGg5ro/l/GY7F/JMEBmI0BxA==
+yargs@13.3.2, yargs@^13.3.0:
+  version "13.3.2"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"
+  integrity sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==
   dependencies:
-    cliui "^4.0.0"
+    cliui "^5.0.0"
     find-up "^3.0.0"
     get-caller-file "^2.0.1"
-    os-locale "^3.1.0"
     require-directory "^2.1.1"
     require-main-filename "^2.0.0"
     set-blocking "^2.0.0"
     string-width "^3.0.0"
     which-module "^2.0.0"
     y18n "^4.0.0"
-    yargs-parser "^13.0.0"
-
-yargs@^12.0.5:
-  version "12.0.5"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
-  integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==
-  dependencies:
-    cliui "^4.0.0"
-    decamelize "^1.2.0"
-    find-up "^3.0.0"
-    get-caller-file "^1.0.1"
-    os-locale "^3.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1 || ^4.0.0"
-    yargs-parser "^11.1.1"
+    yargs-parser "^13.1.2"
diff --git a/pkg/keyaddr/key.go b/pkg/keyaddr/key.go
index c06d072..4d84434 100644
--- a/pkg/keyaddr/key.go
+++ b/pkg/keyaddr/key.go
@@ -10,7 +10,6 @@ package keyaddr
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 // It is built using the gomobile tool, so the API is constrained to particular types of parameters:
 //
 // * string
@@ -163,11 +162,11 @@ func (k *Key) HardenedChild(n int32) (*Key, error) {
 	return KeyFromExtended(nk)
 }
 
-// Sign uses the given key to sign a message; the message must be the
+// SignSecP uses the given SecP key to sign a message; the message must be the
 // standard base64 encoding of the bytes of the message.
 // It returns a signature object.
 // The key must be a private key.
-func (k *Key) Sign(msgstr string) (*Signature, error) {
+func (k *Key) SignSecP(msgstr string) (*Signature, error) {
 	msg, err := base64.StdEncoding.DecodeString(msgstr)
 	if err != nil {
 		return nil, errors.Wrap(err, "error decoding string")
@@ -184,6 +183,37 @@ func (k *Key) Sign(msgstr string) (*Signature, error) {
 	return SignatureFrom(sig)
 }
 
+// SignEdB64 uses the given ED key to sign a message; the message must be the
+// standard base64 encoding of the bytes of the message.
+// It returns a signature object.
+// The key must be a private key.
+func (k *Key) SignEdB64(msgstr string) (*Signature, error) {
+	msg, err := base64.StdEncoding.DecodeString(msgstr)
+	if err != nil {
+		return nil, errors.Wrap(err, "error decoding b64 bstring")
+	}
+	pk, err := k.UnivToPrivateKey()
+	if err != nil {
+		return nil, errors.Wrap(err, "error getting private key")
+	}
+	sig := pk.Sign(msg)
+	return SignatureFrom(sig)
+}
+
+// SignEdText uses the given ED key to sign a message; the message must be the
+// text encoding of the bytes of the message.
+// It returns a signature object.
+// The key must be a private key.
+func (k *Key) SignEdText(msgstr string) (*Signature, error) {
+	msg := []byte(msgstr)
+	pk, err := k.UnivToPrivateKey()
+	if err != nil {
+		return nil, errors.Wrap(err, "error getting private key")
+	}
+	sig := pk.Sign(msg)
+	return SignatureFrom(sig)
+}
+
 // NdauAddress returns the ndau address associated with the given key.
 // Key can be either public or private; if it is private it will be
 // converted to a public key first.
diff --git a/pkg/keyaddr/key_conv.go b/pkg/keyaddr/key_conv.go
index c281705..6407d93 100644
--- a/pkg/keyaddr/key_conv.go
+++ b/pkg/keyaddr/key_conv.go
@@ -9,7 +9,6 @@ package keyaddr
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
 	"github.com/ndau/ndaumath/pkg/key"
 	"github.com/ndau/ndaumath/pkg/signature"
@@ -96,3 +95,14 @@ func (k *Key) ToPrivateKey() (signature.PrivateKey, error) {
 	err = out.UnmarshalText(text)
 	return out, err
 }
+
+// UnivToPrivateKey constructs a `signature.PrivateKey` from a `*Key`
+func (k *Key) UnivToPrivateKey() (signature.PrivateKey, error) {
+	out := signature.PrivateKey{}
+	key, err := signature.ParseKey(k.Key)
+	if err != nil {
+		return out, errors.Wrap(err, "parsing key")
+	}
+	pkey := key.(*signature.PrivateKey)
+	return *pkey, nil
+}
diff --git a/pkg/signature/algorithm.go b/pkg/signature/algorithm.go
index aae8e4a..76f5a04 100644
--- a/pkg/signature/algorithm.go
+++ b/pkg/signature/algorithm.go
@@ -9,7 +9,6 @@ package signature
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
 	"io"
 	"reflect"
@@ -36,6 +35,9 @@ type Algorithm interface {
 
 	// Generate creates a new keypair
 	Generate(rand io.Reader) (public, private []byte, err error)
+	// Generate creates a new keypair
+	GenerateFromSeed(seed []byte) (public, private []byte, err error)
+
 	// Sign signs the message with privateKey and returns a signature
 	Sign(private, message []byte) []byte
 	// Verify verifies a message's signature
@@ -116,3 +118,13 @@ func Generate(al Algorithm, rdr io.Reader) (public PublicKey, private PrivateKey
 	}
 	return
 }
+
+// Generate a high-level keypair from a given seed
+func GenerateFromSeed(al Algorithm, seed []byte) (public PublicKey, private PrivateKey, err error) {
+	pubBytes, privBytes, err := al.GenerateFromSeed(seed)
+	if err == nil {
+		public = PublicKey{keyBase{algorithm: al, key: pubBytes, extra: []byte{}}}
+		private = PrivateKey{keyBase{algorithm: al, key: privBytes, extra: []byte{}}}
+	}
+	return
+}
diff --git a/pkg/signature/algorithms/ed25519/ed25519.go b/pkg/signature/algorithms/ed25519/ed25519.go
index 0667bac..62e0c9b 100644
--- a/pkg/signature/algorithms/ed25519/ed25519.go
+++ b/pkg/signature/algorithms/ed25519/ed25519.go
@@ -9,8 +9,8 @@ package ed25519
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
+	"errors"
 	"io"
 
 	impl "golang.org/x/crypto/ed25519"
@@ -43,6 +43,17 @@ func (e ed25519) Generate(rand io.Reader) (public, private []byte, err error) {
 	return impl.GenerateKey(rand)
 }
 
+// GenerateFromSeed implements Algorithm
+func (e ed25519) GenerateFromSeed(seed []byte) (public, private []byte, err error) {
+	if len(seed) != 32 {
+		return nil, nil, errors.New("seed must be length 32")
+	}
+	privKey := impl.NewKeyFromSeed(seed)
+	pubKey := (privKey.Public()).(impl.PublicKey)
+
+	return pubKey, privKey, nil
+}
+
 // Sign implements Algorithm
 func (e ed25519) Sign(private, message []byte) []byte {
 	return impl.Sign(impl.PrivateKey(private), message)
diff --git a/pkg/signature/algorithms/null/null.go b/pkg/signature/algorithms/null/null.go
index dbbfc08..c6a5950 100644
--- a/pkg/signature/algorithms/null/null.go
+++ b/pkg/signature/algorithms/null/null.go
@@ -9,7 +9,6 @@ package null
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
 	"errors"
 	"io"
@@ -44,6 +43,11 @@ func (null) Generate(rand io.Reader) (public, private []byte, err error) {
 	return []byte{}, []byte{}, errors.New("generating null keys is not permitted")
 }
 
+// GenerateFromSeed implements Algorithm
+func (null) GenerateFromSeed(seed []byte) (public, private []byte, err error) {
+	return []byte{}, []byte{}, errors.New("generating null keys is not permitted")
+}
+
 // Sign implements Algorithm
 func (n null) Sign(private, message []byte) []byte {
 	return []byte{}
diff --git a/pkg/signature/algorithms/secp256k1/secp256k1.go b/pkg/signature/algorithms/secp256k1/secp256k1.go
index 93422c2..8179f46 100644
--- a/pkg/signature/algorithms/secp256k1/secp256k1.go
+++ b/pkg/signature/algorithms/secp256k1/secp256k1.go
@@ -9,9 +9,9 @@ package secp256k1
 // https://www.apache.org/licenses/LICENSE-2.0.txt
 // - -- --- ---- -----
 
-
 import (
 	"crypto/sha256"
+	"errors"
 	"io"
 
 	"github.com/btcsuite/btcd/btcec"
@@ -66,6 +66,19 @@ func (secp256k1) Generate(rand io.Reader) (public, private []byte, err error) {
 	return
 }
 
+// GenerateFromSeed creates a new keypair from a given seed
+func (secp256k1) GenerateFromSeed(seed []byte) (public, private []byte, err error) {
+	if len(seed) != 32 {
+		return nil, nil, errors.New("seed must be length 32")
+	}
+
+	prv, _, err := bip32.NewMaster(seed)
+	private = prv[:]
+	public = bip32.PrivateToPublic(private)
+
+	return
+}
+
 // btcec documentation claims that we're not supposed to sign full messages,
 // but instead pre-hash the message and sign the hash. That sounds weird
 // to me, but who am I to disobey the documentation?