1. module sha256
   1. function sha256 (message, options)
   2. function sha256.x2 (message, options)
2. module sha256.sha256
   1. function sha256.sha256 (message, options)
   2. function sha256.sha256.x2 (message, options)

module sha256

function sha256 (message, options)

• description and source-code

  function sha256(message, options) {;
    if (message.constructor === String) {
      message = _imports.convertString.UTF8.stringToBytes(message);
    }
  
    var H =[ 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
             0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 ];
  
    var m = bytesToWords(message);
    var l = message.length * 8;
  
    m[l >> 5] |= 0x80 << (24 - l % 32);
    m[((l + 64 >> 9) << 4) + 15] = l;
  
    for (var i=0 ; i<m.length; i += 16) {
      processBlock(H, m, i);
    }
  
    var digestbytes = wordsToBytes(H);
    return options && options.asBytes ? digestbytes :
           options && options.asString ? _imports.convertString.bytesToString(digestbytes) :
           _imports.bytesToHex(digestbytes)
  }

• example usage

  n/a

function sha256.x2 (message, options)

• description and source-code

  x2 = function (message, options) {
  	return sha256(sha256(message, { asBytes:true }), options)
  }

• example usage

  ...
  
  ## Usage
  
  There are two methods, one for computing the hash of the input, and one for double-hashing it:
  
  ```js
  sha256('hello');   // "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
  sha256.x2('hello'); // "d7914fe546b684688bb95f4f888a92dfc680603a75f23eb823658031fff766d9
  "
  ```
  
  Input is either an array of bytes or a string. **String are always interpreted as binary data**; if you have a hex-encoded string
   of data to parse, first convert it to a binary string or array of bytes.
  
  Output by default is a hexadecimal-encoded string. Other options are an array of bytes, or a binary-encoded string:
  
  ```js
  ...

module sha256.sha256

function sha256.sha256 (message, options)

• description and source-code

  function sha256(message, options) {;
    if (message.constructor === String) {
      message = _imports.convertString.UTF8.stringToBytes(message);
    }
  
    var H =[ 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
             0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 ];
  
    var m = bytesToWords(message);
    var l = message.length * 8;
  
    m[l >> 5] |= 0x80 << (24 - l % 32);
    m[((l + 64 >> 9) << 4) + 15] = l;
  
    for (var i=0 ; i<m.length; i += 16) {
      processBlock(H, m, i);
    }
  
    var digestbytes = wordsToBytes(H);
    return options && options.asBytes ? digestbytes :
           options && options.asString ? _imports.convertString.bytesToString(digestbytes) :
           _imports.bytesToHex(digestbytes)
  }

• example usage

  n/a

function sha256.sha256.x2 (message, options)

• description and source-code

  x2 = function (message, options) {
    return sha256(sha256(message, { asBytes:true }), options)
  }

• example usage

  ...
  
  ## Usage
  
  There are two methods, one for computing the hash of the input, and one for double-hashing it:
  
  ```js
  sha256('hello');   // "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
  sha256.x2('hello'); // "d7914fe546b684688bb95f4f888a92dfc680603a75f23eb823658031fff766d9
  "
  ```
  
  Input is either an array of bytes or a string. **String are always interpreted as binary data**; if you have a hex-encoded string
   of data to parse, first convert it to a binary string or array of bytes.
  
  Output by default is a hexadecimal-encoded string. Other options are an array of bytes, or a binary-encoded string:
  
  ```js
  ...