Add more tags

Author: alcuadrado

packages/ethereum-cryptography/package.json

@@ -12,7 +12,25 @@
   "license": "MIT",
   "keywords": [
     "ethereum",
-    "cryptography"
+    "cryptography",
+    "digital signature",
+    "hash",
+    "encryption",
+    "prng",
+    "keccak",
+    "scrypt",
+    "pbkdf2",
+    "sha-256",
+    "ripemd-160",
+    "blake2b",
+    "aes",
+    "advanced encryption standar",
+    "secp256k1",
+    "ecdsa",
+    "bip32",
+    "hierarchical deterministic keys",
+    "hdwallet",
+    "hdkeys"
   ],
   "main": "./index.js",
   "types": "./index.d.ts",