Renamed files to ts

src/script_signature.js

@@ -1,64 +0,0 @@
-const bip66 = require('bip66')
-const Buffer = require('safe-buffer').Buffer
-const typeforce = require('typeforce')
-const types = require('./types')
-
-const ZERO = Buffer.alloc(1, 0)
-function toDER (x) {
-  let i = 0
-  while (x[i] === 0) ++i
-  if (i === x.length) return ZERO
-  x = x.slice(i)
-  if (x[0] & 0x80) return Buffer.concat([ZERO, x], 1 + x.length)
-  return x
-}
-
-function fromDER (x) {
-  if (x[0] === 0x00) x = x.slice(1)
-  const buffer = Buffer.alloc(32, 0)
-  const bstart = Math.max(0, 32 - x.length)
-  x.copy(buffer, bstart)
-  return buffer
-}
-
-// BIP62: 1 byte hashType flag (only 0x01, 0x02, 0x03, 0x81, 0x82 and 0x83 are allowed)
-function decode (buffer) {
-  const hashType = buffer.readUInt8(buffer.length - 1)
-  const hashTypeMod = hashType & ~0x80
-  if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
-
-  const decode = bip66.decode(buffer.slice(0, -1))
-  const r = fromDER(decode.r)
-  const s = fromDER(decode.s)
-
-  return {
-    signature: Buffer.concat([r, s], 64),
-    hashType: hashType
-  }
-}
-
-function encode (signature, hashType) {
-  typeforce({
-    signature: types.BufferN(64),
-    hashType: types.UInt8
-  }, { signature, hashType })
-
-  const hashTypeMod = hashType & ~0x80
-  if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
-
-  const hashTypeBuffer = Buffer.allocUnsafe(1)
-  hashTypeBuffer.writeUInt8(hashType, 0)
-
-  const r = toDER(signature.slice(0, 32))
-  const s = toDER(signature.slice(32, 64))
-
-  return Buffer.concat([
-    bip66.encode(r, s),
-    hashTypeBuffer
-  ])
-}
-
-module.exports = {
-  decode: decode,
-  encode: encode
-}