openssl/crypto/poly1305/poly1305_ppc.c
Tomas Mraz 3d178db73b ppccap.c: Split out algorithm-specific functions
Fixes #13336

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15828)
2021-06-25 08:49:45 +01:00

48 lines
2.0 KiB
C

/*
* Copyright 2009-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/opensslconf.h>
#include <openssl/types.h>
#include "crypto/poly1305.h"
#include "crypto/ppc_arch.h"
void poly1305_init_int(void *ctx, const unsigned char key[16]);
void poly1305_blocks(void *ctx, const unsigned char *inp, size_t len,
unsigned int padbit);
void poly1305_emit(void *ctx, unsigned char mac[16],
const unsigned int nonce[4]);
void poly1305_init_fpu(void *ctx, const unsigned char key[16]);
void poly1305_blocks_fpu(void *ctx, const unsigned char *inp, size_t len,
unsigned int padbit);
void poly1305_emit_fpu(void *ctx, unsigned char mac[16],
const unsigned int nonce[4]);
void poly1305_init_vsx(void *ctx, const unsigned char key[16]);
void poly1305_blocks_vsx(void *ctx, const unsigned char *inp, size_t len,
unsigned int padbit);
void poly1305_emit_vsx(void *ctx, unsigned char mac[16],
const unsigned int nonce[4]);
int poly1305_init(void *ctx, const unsigned char key[16], void *func[2]);
int poly1305_init(void *ctx, const unsigned char key[16], void *func[2])
{
if (OPENSSL_ppccap_P & PPC_CRYPTO207) {
poly1305_init_int(ctx, key);
func[0] = (void*)(uintptr_t)poly1305_blocks_vsx;
func[1] = (void*)(uintptr_t)poly1305_emit;
} else if (sizeof(size_t) == 4 && (OPENSSL_ppccap_P & PPC_FPU)) {
poly1305_init_fpu(ctx, key);
func[0] = (void*)(uintptr_t)poly1305_blocks_fpu;
func[1] = (void*)(uintptr_t)poly1305_emit_fpu;
} else {
poly1305_init_int(ctx, key);
func[0] = (void*)(uintptr_t)poly1305_blocks;
func[1] = (void*)(uintptr_t)poly1305_emit;
}
return 1;
}