Add tiny-secp256k1 library typing

types/tiny-secp256k1/index.d.ts

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+// Type definitions for tiny-secp256k1 v1.0.0
+// Project: https://github.com/bitcoinjs/tiny-secp256k1
+// Definitions by: Eduardo Henke <https://github.com/eduhenke/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+/// <reference types="node" />
+
+/**
+ * Checks if A is a point in the curve
+ * @param A should be:
+ *   encoded with a sequence tag of 0x02, 0x03 or 0x04
+ *   A.x is within [1...p - 1]
+ *   A.y is within [1...p - 1]
+ */
+export function isPoint(A: Buffer): boolean;
+
+/**
+ * Returns false if the point is not compressed.
+ */
+export function isPointCompressed(A: Buffer): boolean;
+
+/**
+ * Checks if point is private key
+ * @param d should be:
+ *   256-bit
+ *   within [1...order - 1]
+ */
+export function isPrivate(d: Buffer): boolean;
+
+/**
+ * Returns null if result is at infinity.
+ * @param A isPoint(A) should be true
+ * @param B isPoint(B) should be true
+ * @param compressed optional, if true compresses the resulting point
+ */
+export function pointAdd(A: Buffer, B: Buffer, compressed?: boolean): Buffer | null;
+
+/**
+ * Returns null if result is at infinity.
+ * @param A isPoint(A) should be true
+ * @param tweak should be within [1...order - 1]
+ * @param compressed optional, if true compresses the resulting point
+ */
+export function pointAddScalar(A: Buffer, tweak: Buffer, compressed?: boolean): Buffer | null;
+
+/**
+ * Compresses point A.
+ * @param A isPoint(A) should be true
+ * @param compressed if true compresses A
+ */
+export function pointCompress(A: Buffer, compressed: boolean): Buffer;
+
+/**
+ * Returns null if result is at infinity.
+ * @param d isPrivate(d) should be true
+ * @param compressed optional, if true compresses the resulting point
+ */
+export function pointFromScalar(d: Buffer, compressed?: boolean): Buffer | null;
+
+/**
+ * Returns null if result is at infinity.
+ * @param A isPoint(A) should be true
+ * @param tweak should be within [1...order - 1]
+ * @param compressed optional, if true compresses the resulting point
+ */
+export function pointMultiply(A: Buffer, tweak: Buffer, compressed?: boolean): Buffer | null;
+
+/**
+ * Returns null if result is equal to 0.
+ * @param d isPrivate(d) should be true
+ * @param tweak should be within [1...order - 1]
+ */
+export function privateAdd(d: Buffer, tweak: Buffer): Buffer | null;
+
+/**
+ * Returns null if result is equal to 0.
+ * @param d isPrivate(d) should be true
+ * @param tweak should be within [1...order - 1]
+ */
+export function privateSub(d: Buffer, tweak: Buffer): Buffer | null;
+
+/**
+ * Returns normalized signatures, each of (r, s) values are guaranteed to less than order / 2. Uses RFC6979.
+ * @param message should be 256-bit
+ * @param privateKey isPrivate(privateKey) should be true
+ */
+export function sign(message: Buffer, privateKey: Buffer): Buffer;
+
+/**
+ * Returns false if any of (r, s) values are equal to 0, or if the signature is rejected.
+ * @param message should be 256-bit
+ * @param publicKey isPoint(publicKey) should be true
+ * @param signature signature should have all (r, s) values within range [0...order - 1]
+ */
+export function verify(message: Buffer, publicKey: Buffer, signature: Buffer): boolean;

types/tiny-secp256k1/tiny-secp256k1-tests.ts

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+import { pointFromScalar, sign, verify } from 'tiny-secp256k1';
+
+const d = Buffer.from('5272e811987e04833abf88c2cdbb43eddfefd7b4afa50e87bfcd3a2b297f0a93');
+const Q = pointFromScalar(d);
+
+const message = new Buffer(new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64]));
+const signature = sign(message, d);
+
+if (Q !== null) {
+    verify(message, Q, signature);
+}

types/tiny-secp256k1/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es5"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "tiny-secp256k1-tests.ts"
+    ]
+}

types/tiny-secp256k1/tslint.json

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+{ "extends": "dtslint/dt.json" }