sha man page on BSDOS

Man page or keyword search:  
man Server   6284 pages
apropos Keyword Search (all sections)
Output format
BSDOS logo
[printable version]



sha(3)			     OpenSSL			   sha(3)

NAME
       SHA1, SHA1_Init, SHA1_Update, SHA1_Final - Secure Hash
       Algorithm

SYNOPSIS
	#include <openssl/sha.h>

	unsigned char *SHA1(const unsigned char *d, unsigned long n,
			 unsigned char *md);

	void SHA1_Init(SHA_CTX *c);
	void SHA1_Update(SHA_CTX *c, const void *data,
			 unsigned long len);
	void SHA1_Final(unsigned char *md, SHA_CTX *c);

DESCRIPTION
       SHA-1 (Secure Hash Algorithm) is a cryptographic hash
       function with a 160 bit output.

       SHA1() computes the SHA-1 message digest of the n bytes at
       d and places it in md (which must have space for
       SHA_DIGEST_LENGTH == 20 bytes of output). If md is NULL,
       the digest is placed in a static array.

       The following functions may be used if the message is not
       completely stored in memory:

       SHA1_Init() initializes a SHA_CTX structure.

       SHA1_Update() can be called repeatedly with chunks of the
       message to be hashed (len bytes at data).

       SHA1_Final() places the message digest in md, which must
       have space for SHA_DIGEST_LENGTH == 20 bytes of output,
       and erases the SHA_CTX.

       Applications should use the higher level functions
       EVP_DigestInit(3) etc. instead of calling the hash
       functions directly.

       The predecessor of SHA-1, SHA, is also implemented, but it
       should be used only when backward compatibility is
       required.

RETURN VALUES
       SHA1() returns a pointer to the hash value.

       SHA1_Init(), SHA1_Update() and SHA1_Final() do not return
       values.

CONFORMING TO
       SHA: US Federal Information Processing Standard FIPS PUB
       180 (Secure Hash Standard), SHA-1: US Federal Information

16/Aug/2000		      0.9.6				1

sha(3)			     OpenSSL			   sha(3)

       Processing Standard FIPS PUB 180-1 (Secure Hash Standard),
       ANSI X9.30

SEE ALSO
       ripemd(3), hmac(3), EVP_DigestInit(3)

HISTORY
       SHA1(), SHA1_Init(), SHA1_Update() and SHA1_Final() are
       available in all versions of SSLeay and OpenSSL.

16/Aug/2000		      0.9.6				2

[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server BSDOS

List of man pages available for BSDOS

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net