Index of values

This padding scheme pads data with one 0x80 byte, followed by as many 0 bytes as needed to fill the block.

aes key returns a MAC based on AES encryption in CBC mode.

AES is the Advanced Encryption Standard, also known as Rijndael.

ARCfour (``alleged RC4'') is a fast stream cipher that appears to produce equivalent results with the commercial RC4 cipher from RSA Data Security Inc.

Blowfish is a fast block cipher proposed by B.Schneier in 1994.

Compose two transforms, feeding the output of the first transform to the input of the second transform.

Return a transform that compresses its input.

Return a transform that decodes its input from hexadecimal.

Return a transform that performs base 64 decoding.

decrypt k msg decrypts the ciphertext string msg with the private part of key k (components n and d).

decrypt_CRT k msg decrypts the ciphertext string msg with the CRT private part of key k (components n, p, q, dp, dq and qinv).

derive_key shared_secret numbytes derives a secret string (typically, a key for symmetric encryption) from the given shared secret.

des key returns a MAC based on DES encryption in CBC mode.

DES is the Data Encryption Standard.

des_final_triple_des key returns a MAC that uses DES CBC with the first 8 bytes of key as key.

device_rng devicename returns a random number generator that reads from the special file devicename, e.g.

device_rng egd_socket returns a random number generator that uses the Entropy Gathering Daemon (http://egd.sourceforge.net/).

Return a transform that encodes its input in hexadecimal.

Same as Cryptokit.Base64.encode_multiline, but the output is not split into lines, and no final padding is added.

Same as Cryptokit.Base64.encode_compact, but the output is padded with = characters at the end (if necessary).

Return a transform that performs base 64 encoding.

encrypt k msg encrypts the string msg with the public part of key k (components n and e).

hash_channel h ic reads characters from the input channel ic, computes their hash value and returns it.

hash_string h s runs the string s through the hash function h and returns the hash value of s.

hmac_md5 key returns a MAC based on the HMAC construction (RFC2104) applied to MD5.

hmac_ripemd160 key returns a MAC based on the HMAC construction (RFC2104) applied to RIPEMD-160.

hmac_sha1 key returns a MAC based on the HMAC construction (RFC2104) applied to SHA-1.

hmac_sha256 key returns a MAC based on the HMAC construction (RFC2104) applied to SHA-256.

This padding scheme pads data with n copies of the character having code n.

MD5 is an older hash function, producing 128-bit hashes (16 bytes).

Compute the message to be sent to the other party.

mod_mult a b c computes a*b mod c, where the strings a, b, c and the result string are viewed as arbitrary-precision integers in big-endian format.

mod_power a b c computes a^b mod c, where the strings a, b, c and the result string are viewed as arbitrary-precision integers in big-endian format.

Generate a new, random RSA key.

Generate a new set of Diffie-Hellman parameters.

Generate a random private secret.

pseudo_rng seed returns a pseudo-random number generator seeded by the string seed.

RIPEMD-160 produces 160-bit hashes (20 bytes).

A high-quality random number generator, using hard-to-predict system data to generate entropy.

SHA-1 is the Secure Hash Algorithm revision 1.

SHA-256, another NIST standard, is a variant of SHA-1 that produces 256-bit hashes (32 bytes).

SHA-3, the latest NIST standard for cryptographic hashing, produces hashes of 224, 256, 384 or 512 bits (24, 32, 48 or 64 bytes).

Recover the shared secret from the private secret of the present party and the message received from the other party.

sign k msg encrypts the plaintext string msg with the private part of key k (components n and d), thus performing a digital signature on msg.

sign_CRT k msg encrypts the plaintext string msg with the CRT private part of key k (components n, p, q, dp, dq and qinv), thus performing a digital signature on msg.

random_string rng len returns a string of len random bytes read from the generator rng.

system_rng () returns a random number generator derived from the OS-provided RNG.

transform_channel t ic oc reads characters from input channel ic, runs them through the transform t, and writes the transformed data to the output channel oc.

transform_string t s runs the string s through the transform t and returns the transformed string.

des key returns a MAC based on triple DES encryption in CBC mode.

Triple DES with two or three DES keys.

Return a transform that decompresses its input.

unwrap_signature k msg decrypts the ciphertext string msg with the public part of key k (components n and d), thus extracting the plaintext that was signed by the sender.

Erase all components of a RSA key.

wipe_string s overwrites s with zeroes.

xor_string src spos dst dpos len performs the xor (exclusive or) of characters spos, ..., spos + len - 1 of src with characters dpos, ..., dpos + len - 1 of dst, storing the result in dst starting at position dpos.