1 /* 2 * Copyright 2009-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stdlib.h> 11 #include <string.h> 12 13 #include <openssl/opensslconf.h> 14 #include "crypto/chacha.h" 15 #include "crypto/ppc_arch.h" 16 17 void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp, 18 size_t len, const unsigned int key[8], 19 const unsigned int counter[4]); 20 void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp, 21 size_t len, const unsigned int key[8], 22 const unsigned int counter[4]); 23 void ChaCha20_ctr32_vsx(unsigned char *out, const unsigned char *inp, 24 size_t len, const unsigned int key[8], 25 const unsigned int counter[4]); 26 void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp, 27 size_t len, const unsigned int key[8], 28 const unsigned int counter[4]) 29 { 30 OPENSSL_ppccap_P & PPC_CRYPTO207 31 ? ChaCha20_ctr32_vsx(out, inp, len, key, counter) 32 : OPENSSL_ppccap_P & PPC_ALTIVEC 33 ? ChaCha20_ctr32_vmx(out, inp, len, key, counter) 34 : ChaCha20_ctr32_int(out, inp, len, key, counter); 35 } 36