SYNOPSIS (DEPRECATED)

string	sha1	(	string arg [,	int iterations ]	)
string	sha1	(	int * arg [,	int iterations ]	)

DESCRIPTION

Create and return a SHA1 message digest from arg. arg may be a string, or an array of numbers (each considered to be a character, ignoring all but the lowest byte).

If iterations is given as a number greater than 0, it is the number of iterations used in the digest calculation. If omitted, the driver executes just one iteration.

The efun costs 5 ticks per iteration.

USAGE

string s;

s = sha1("Hello");
s = sha1( ({ 'H', 'e', 'l', 'l', 'o' }) );

HISTORY

• introduced (3.3.523)
• changed (3.3.712) – added number arrays as argument, and the number of iterations.
• changed (3.3.717) – added the iteration-based evaluation cost.
• deprecated (3.3.719) – obsoleted by hash().

SEE ALSO

crypt(E), md5(E), md5_crypt(E), hash(E), hmac(E)