ssh_hmac_sha512.cpp File Reference

HMAC-SHA2-512 implementation (RFC 2104). See ssh_hmac_sha512.h. More...

#include "network_drivers/presentation/ssh/crypto/ssh_hmac_sha512.h"

Go to the source code of this file.

Functions
void	ssh_hmac_sha512_init (SshHmacSha512Ctx *ctx, const uint8_t *key, size_t key_len)
	Begin an HMAC-SHA2-512 over key (keys > 128 bytes are pre-hashed per RFC 2104).
void	ssh_hmac_sha512_update (SshHmacSha512Ctx *ctx, const uint8_t *data, size_t len)
	Feed len message bytes.
void	ssh_hmac_sha512_final (SshHmacSha512Ctx *ctx, uint8_t mac[SSH_HMAC_SHA512_LEN])
	Finish, writing the 64-byte MAC.
void	ssh_hmac_sha512 (const uint8_t *key, size_t key_len, const uint8_t *data, size_t len, uint8_t mac[SSH_HMAC_SHA512_LEN])
	One-shot HMAC-SHA2-512 over a single buffer.

Detailed Description

HMAC-SHA2-512 implementation (RFC 2104). See ssh_hmac_sha512.h.

HMAC(K, m) = H((K XOR opad) || H((K XOR ipad) || m)), H = SHA-512, block = 128 bytes, ipad = 0x36 repeated, opad = 0x5c repeated.

Definition in file ssh_hmac_sha512.cpp.

Function Documentation

ssh_hmac_sha512_init()

void ssh_hmac_sha512_init	(	SshHmacSha512Ctx *	ctx,
		const uint8_t *	key,
		size_t	key_len
	)

Begin an HMAC-SHA2-512 over key (keys > 128 bytes are pre-hashed per RFC 2104).

Definition at line 34 of file ssh_hmac_sha512.cpp.

References SshHmacSha512Ctx::inner, SshHmacSha512Ctx::okey, SSH_SHA512_BLOCK_LEN, ssh_sha512_init(), and ssh_sha512_update().

Referenced by ssh_hmac_sha512().

ssh_hmac_sha512_update()

void ssh_hmac_sha512_update	(	SshHmacSha512Ctx *	ctx,
		const uint8_t *	data,
		size_t	len
	)

Feed len message bytes.

Definition at line 43 of file ssh_hmac_sha512.cpp.

References SshHmacSha512Ctx::inner, and ssh_sha512_update().

Referenced by ssh_hmac_sha512().

ssh_hmac_sha512_final()

void ssh_hmac_sha512_final	(	SshHmacSha512Ctx *	ctx,
		uint8_t	mac[SSH_HMAC_SHA512_LEN]
	)

Finish, writing the 64-byte MAC.

Definition at line 48 of file ssh_hmac_sha512.cpp.

References SshHmacSha512Ctx::inner, SshHmacSha512Ctx::okey, SSH_SHA512_BLOCK_LEN, SSH_SHA512_DIGEST_LEN, ssh_sha512_final(), ssh_sha512_init(), and ssh_sha512_update().

Referenced by ssh_hmac_sha512().

ssh_hmac_sha512()

void ssh_hmac_sha512	(	const uint8_t *	key,
		size_t	key_len,
		const uint8_t *	data,
		size_t	len,
		uint8_t	mac[SSH_HMAC_SHA512_LEN]
	)

One-shot HMAC-SHA2-512 over a single buffer.

Definition at line 59 of file ssh_hmac_sha512.cpp.

References ssh_hmac_sha512_final(), ssh_hmac_sha512_init(), and ssh_hmac_sha512_update().