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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/browserify-aes/modes/cfb1.js | |
download | website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.gz website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.bz2 website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.zip |
api, login, auth
Diffstat (limited to 'node_modules/browserify-aes/modes/cfb1.js')
-rw-r--r-- | node_modules/browserify-aes/modes/cfb1.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/node_modules/browserify-aes/modes/cfb1.js b/node_modules/browserify-aes/modes/cfb1.js new file mode 100644 index 0000000..0ed1366 --- /dev/null +++ b/node_modules/browserify-aes/modes/cfb1.js @@ -0,0 +1,42 @@ +var Buffer = require('safe-buffer').Buffer + +function encryptByte (self, byteParam, decrypt) { + var pad + var i = -1 + var len = 8 + var out = 0 + var bit, value + while (++i < len) { + pad = self._cipher.encryptBlock(self._prev) + bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 + value = pad[0] ^ bit + out += ((value & 0x80) >> (i % 8)) + self._prev = shiftIn(self._prev, decrypt ? bit : value) + } + return out +} + +function shiftIn (buffer, value) { + var len = buffer.length + var i = -1 + var out = Buffer.allocUnsafe(buffer.length) + buffer = Buffer.concat([buffer, Buffer.from([value])]) + + while (++i < len) { + out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) + } + + return out +} + +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = Buffer.allocUnsafe(len) + var i = -1 + + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + + return out +} |