Version 5.0 The LEDA User Manual

CryptKey
CryptByteString
CryptKey
CryptByteString
CryptKey :: generate key(uint16 key size,
const CryptByteString& passphrase,
const CryptByteString& salt =
CryptByteString( ),
uint32 num iterations = 4096)
generates a key from a passphrase and a salt. The
seed for the generation is simply passphrase ◦salt.
CryptKey :: generate salt(uint16 salt size)
generates a salt as follows: If salt size is at least
sizeof(date)+4 then a representation of the current
date is stored in the last sizeof(date) bytes
of the salt. The remaining bytes are filled with
pseudo-random numbers from a generator which
is initialized with the current time.
CryptKey :: generate key and salt(uint16 key size, uint16 salt size,
const CryptByteString& passphrase,
CryptByteString& salt,
uint32 num iterations = 4096)
first some salt is generated (see above); then a
key is generated from this salt and the given
passphrase.
CryptKey :: read passphrase(const string& prompt,
uint16 min length = 6)
writes the prompt to stdout and then reads a
passphrase from stdin until a phrase with the
specified minimum length is entered. (While the
phrase is read stdin is put into unbuffered mode.)