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Pure-PHP implementation of Salsa20. PHP version 5
| Author: | Jim Wigginton |
| Copyright: | 2019 Jim Wigginton |
| License: | http://www.opensource.org/licenses/mit-license.html MIT License |
| Link: | http://phpseclib.sourceforge.net |
| File Size: | 526 lines (15 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Salsa20:: (17 methods):
usesNonce()
setKey()
setNonce()
setCounter()
createPoly1305Key()
setup()
setupKey()
encrypt()
decrypt()
encryptBlock()
decryptBlock()
crypt()
leftRotate()
quarterRound()
doubleRound()
salsa20()
poly1305()
| usesNonce() X-Ref |
| Salsa20 uses a nonce return: bool |
| setKey($key) X-Ref |
| Sets the key. param: string $key |
| setNonce($nonce) X-Ref |
| Sets the nonce. param: string $nonce |
| setCounter($counter) X-Ref |
| Sets the counter. param: int $counter |
| createPoly1305Key() X-Ref |
| Creates a Poly1305 key using the method discussed in RFC8439 See https://tools.ietf.org/html/rfc8439#section-2.6.1 |
| setup() X-Ref |
| Setup the self::ENGINE_INTERNAL $engine (re)init, if necessary, the internal cipher $engine _setup() will be called each time if $changed === true typically this happens when using one or more of following public methods: - setKey() - setNonce() - First run of encrypt() / decrypt() with no init-settings see: self::setKey() see: self::setNonce() see: self::disableContinuousBuffer() |
| setupKey() X-Ref |
| Setup the key (expansion) |
| encrypt($plaintext) X-Ref |
| Encrypts a message. return: string $ciphertext param: string $plaintext see: \phpseclib3\Crypt\Common\SymmetricKey::decrypt() see: self::crypt() |
| decrypt($ciphertext) X-Ref |
| Decrypts a message. $this->decrypt($this->encrypt($plaintext)) == $this->encrypt($this->encrypt($plaintext)). At least if the continuous buffer is disabled. return: string $plaintext param: string $ciphertext see: \phpseclib3\Crypt\Common\SymmetricKey::encrypt() see: self::crypt() |
| encryptBlock($in) X-Ref |
| Encrypts a block param: string $in |
| decryptBlock($in) X-Ref |
| Decrypts a block param: string $in |
| crypt($text, $mode) X-Ref |
| Encrypts or decrypts a message. return: string $text param: string $text param: int $mode see: self::encrypt() see: self::decrypt() |
| leftRotate($x, $n) X-Ref |
| Left Rotate return: int param: int $x param: int $n |
| quarterRound(&$a, &$b, &$c, &$d) X-Ref |
| The quarterround function param: int $a param: int $b param: int $c param: int $d |
| doubleRound(&$x0, &$x1, &$x2, &$x3, &$x4, &$x5, &$x6, &$x7, &$x8, &$x9, &$x10, &$x11, &$x12, &$x13, &$x14, &$x15) X-Ref |
| The doubleround function param: int $x0 (by reference) param: int $x1 (by reference) param: int $x2 (by reference) param: int $x3 (by reference) param: int $x4 (by reference) param: int $x5 (by reference) param: int $x6 (by reference) param: int $x7 (by reference) param: int $x8 (by reference) param: int $x9 (by reference) param: int $x10 (by reference) param: int $x11 (by reference) param: int $x12 (by reference) param: int $x13 (by reference) param: int $x14 (by reference) param: int $x15 (by reference) |
| salsa20($x) X-Ref |
| The Salsa20 hash function function param: string $x |
| poly1305($ciphertext) X-Ref |
| Calculates Poly1305 MAC return: string param: string $ciphertext see: self::decrypt() see: self::encrypt() |