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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2023-02-26 12:20:59 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2023-02-26 13:31:44 +0200 |
| commit | 84f2e2d0b51b7b3e75d96d8188ae6a8d8174542b (patch) | |
| tree | abd86a33ec1cc68a070e092b014a6094e34c9baa /cipher/rijndael.c | |
| parent | a7ebf9d52e67015c0ae175c0a9bbff9da9fe6f32 (diff) | |
| download | libgcrypt-84f2e2d0b51b7b3e75d96d8188ae6a8d8174542b.tar.gz | |
aes-ppc: add CTR32LE bulk acceleration
* cipher/rijndael-ppc-functions.h (CTR32LE_ENC_FUNC): New.
* cipher/rijndael-ppc.c (_gcry_aes_ppc8_ctr32le_enc): New.
* cipher/rijndael-ppc9le.c (_gcry_aes_ppc9le_ctr32le_enc): New.
* cipher/rijndael.c (_gcry_aes_ppc8_ctr32le_enc)
(_gcry_aes_ppc9le_ctr32le_enc): New.
(do_setkey): Setup _gcry_aes_ppc8_ctr32le_enc for POWER8 and
_gcry_aes_ppc9le_ctr32le_enc for POWER9.
--
Benchmark on POWER9:
Before:
AES | nanosecs/byte mebibytes/sec cycles/byte
GCM-SIV enc | 1.42 ns/B 672.2 MiB/s 3.26 c/B
After:
AES | nanosecs/byte mebibytes/sec cycles/byte
GCM-SIV enc | 0.725 ns/B 1316 MiB/s 1.67 c/B
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'cipher/rijndael.c')
| -rw-r--r-- | cipher/rijndael.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/cipher/rijndael.c b/cipher/rijndael.c index 071d4a16..b49a0642 100644 --- a/cipher/rijndael.c +++ b/cipher/rijndael.c @@ -280,6 +280,10 @@ extern void _gcry_aes_ppc8_xts_crypt (void *context, unsigned char *tweak, void *outbuf_arg, const void *inbuf_arg, size_t nblocks, int encrypt); + +extern void _gcry_aes_ppc8_ctr32le_enc (void *context, unsigned char *ctr, + void *outbuf_arg, const void *inbuf_arg, + size_t nblocks); #endif /*USE_PPC_CRYPTO*/ #ifdef USE_PPC_CRYPTO_WITH_PPC9LE @@ -322,6 +326,11 @@ extern void _gcry_aes_ppc9le_xts_crypt (void *context, unsigned char *tweak, const void *inbuf_arg, size_t nblocks, int encrypt); +extern void _gcry_aes_ppc9le_ctr32le_enc (void *context, unsigned char *ctr, + void *outbuf_arg, + const void *inbuf_arg, + size_t nblocks); + extern size_t _gcry_aes_p10le_gcm_crypt (gcry_cipher_hd_t c, void *outbuf_arg, const void *inbuf_arg, size_t nblocks, int encrypt); @@ -633,6 +642,7 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen, bulk_ops->ocb_crypt = _gcry_aes_ppc9le_ocb_crypt; bulk_ops->ocb_auth = _gcry_aes_ppc9le_ocb_auth; bulk_ops->xts_crypt = _gcry_aes_ppc9le_xts_crypt; + bulk_ops->ctr32le_enc = _gcry_aes_ppc9le_ctr32le_enc; if (hwfeatures & HWF_PPC_ARCH_3_10) /* for P10 */ bulk_ops->gcm_crypt = _gcry_aes_p10le_gcm_crypt; # ifdef ENABLE_FORCE_SOFT_HWFEATURES @@ -663,6 +673,7 @@ do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen, bulk_ops->ocb_crypt = _gcry_aes_ppc8_ocb_crypt; bulk_ops->ocb_auth = _gcry_aes_ppc8_ocb_auth; bulk_ops->xts_crypt = _gcry_aes_ppc8_xts_crypt; + bulk_ops->ctr32le_enc = _gcry_aes_ppc8_ctr32le_enc; } #endif #ifdef USE_S390X_CRYPTO |