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authorLinus Torvalds <torvalds@linux-foundation.org>2025-05-26 13:47:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-05-26 13:47:28 -0700
commit14418ddcc2c2055743ac7ee53d5ac2cf8a8660a7 (patch)
tree4edb44583a986dce31f537ff3d55032118b2db3e /lib/crypto/poly1305.c
parent15d90a5e5524532b7456a24f4626cf28c1629c4c (diff)
parent2297554f01df6d3d4e98a3915c183ce3e491740a (diff)
Merge tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Fix memcpy_sglist to handle partially overlapping SG lists - Use memcpy_sglist to replace null skcipher - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS - Hide CRYPTO_MANAGER - Add delayed freeing of driver crypto_alg structures Compression: - Allocate large buffers on first use instead of initialisation in scomp - Drop destination linearisation buffer in scomp - Move scomp stream allocation into acomp - Add acomp scatter-gather walker - Remove request chaining - Add optional async request allocation Hashing: - Remove request chaining - Add optional async request allocation - Move partial block handling into API - Add ahash support to hmac - Fix shash documentation to disallow usage in hard IRQs Algorithms: - Remove unnecessary SIMD fallback code on x86 and arm/arm64 - Drop avx10_256 xts(aes)/ctr(aes) on x86 - Improve avx-512 optimisations for xts(aes) - Move chacha arch implementations into lib/crypto - Move poly1305 into lib/crypto and drop unused Crypto API algorithm - Disable powerpc/poly1305 as it has no SIMD fallback - Move sha256 arch implementations into lib/crypto - Convert deflate to acomp - Set block size correctly in cbcmac Drivers: - Do not use sg_dma_len before mapping in sun8i-ss - Fix warm-reboot failure by making shutdown do more work in qat - Add locking in zynqmp-sha - Remove cavium/zip - Add support for PCI device 0x17D8 to ccp - Add qat_6xxx support in qat - Add support for RK3576 in rockchip-rng - Add support for i.MX8QM in caam Others: - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up - Add new SEV/SNP platform shutdown API in ccp" * tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (382 commits) x86/fpu: Fix irq_fpu_usable() to return false during CPU onlining crypto: qat - add missing header inclusion crypto: api - Redo lookup on EEXIST Revert "crypto: testmgr - Add hash export format testing" crypto: marvell/cesa - Do not chain submitted requests crypto: powerpc/poly1305 - add depends on BROKEN for now Revert "crypto: powerpc/poly1305 - Add SIMD fallback" crypto: ccp - Add missing tee info reg for teev2 crypto: ccp - Add missing bootloader info reg for pspv5 crypto: sun8i-ce - move fallback ahash_request to the end of the struct crypto: octeontx2 - Use dynamic allocated memory region for lmtst crypto: octeontx2 - Initialize cptlfs device info once crypto: xts - Only add ecb if it is not already there crypto: lrw - Only add ecb if it is not already there crypto: testmgr - Add hash export format testing crypto: testmgr - Use ahash for generic tfm crypto: hmac - Add ahash support crypto: testmgr - Ignore EEXIST on shash allocation crypto: algapi - Add driver template support to crypto_inst_setname crypto: shash - Set reqsize in shash_alg ...
Diffstat (limited to 'lib/crypto/poly1305.c')
-rw-r--r--lib/crypto/poly1305.c75
1 files changed, 35 insertions, 40 deletions
diff --git a/lib/crypto/poly1305.c b/lib/crypto/poly1305.c
index 6e80214ebad8..5f2f2af3b59f 100644
--- a/lib/crypto/poly1305.c
+++ b/lib/crypto/poly1305.c
@@ -7,72 +7,67 @@
* Based on public domain code by Andrew Moon and Daniel J. Bernstein.
*/
+#include <crypto/internal/blockhash.h>
#include <crypto/internal/poly1305.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/string.h>
#include <linux/unaligned.h>
-void poly1305_init_generic(struct poly1305_desc_ctx *desc,
- const u8 key[POLY1305_KEY_SIZE])
+void poly1305_init(struct poly1305_desc_ctx *desc,
+ const u8 key[POLY1305_KEY_SIZE])
{
- poly1305_core_setkey(&desc->core_r, key);
desc->s[0] = get_unaligned_le32(key + 16);
desc->s[1] = get_unaligned_le32(key + 20);
desc->s[2] = get_unaligned_le32(key + 24);
desc->s[3] = get_unaligned_le32(key + 28);
- poly1305_core_init(&desc->h);
desc->buflen = 0;
- desc->sset = true;
- desc->rset = 2;
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_block_init_arch(&desc->state, key);
+ else
+ poly1305_block_init_generic(&desc->state, key);
}
-EXPORT_SYMBOL_GPL(poly1305_init_generic);
+EXPORT_SYMBOL(poly1305_init);
-void poly1305_update_generic(struct poly1305_desc_ctx *desc, const u8 *src,
- unsigned int nbytes)
+static inline void poly1305_blocks(struct poly1305_block_state *state,
+ const u8 *src, unsigned int len)
{
- unsigned int bytes;
-
- if (unlikely(desc->buflen)) {
- bytes = min(nbytes, POLY1305_BLOCK_SIZE - desc->buflen);
- memcpy(desc->buf + desc->buflen, src, bytes);
- src += bytes;
- nbytes -= bytes;
- desc->buflen += bytes;
-
- if (desc->buflen == POLY1305_BLOCK_SIZE) {
- poly1305_core_blocks(&desc->h, &desc->core_r, desc->buf,
- 1, 1);
- desc->buflen = 0;
- }
- }
-
- if (likely(nbytes >= POLY1305_BLOCK_SIZE)) {
- poly1305_core_blocks(&desc->h, &desc->core_r, src,
- nbytes / POLY1305_BLOCK_SIZE, 1);
- src += nbytes - (nbytes % POLY1305_BLOCK_SIZE);
- nbytes %= POLY1305_BLOCK_SIZE;
- }
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_blocks_arch(state, src, len, 1);
+ else
+ poly1305_blocks_generic(state, src, len, 1);
+}
- if (unlikely(nbytes)) {
- desc->buflen = nbytes;
- memcpy(desc->buf, src, nbytes);
- }
+void poly1305_update(struct poly1305_desc_ctx *desc,
+ const u8 *src, unsigned int nbytes)
+{
+ desc->buflen = BLOCK_HASH_UPDATE(poly1305_blocks, &desc->state,
+ src, nbytes, POLY1305_BLOCK_SIZE,
+ desc->buf, desc->buflen);
}
-EXPORT_SYMBOL_GPL(poly1305_update_generic);
+EXPORT_SYMBOL(poly1305_update);
-void poly1305_final_generic(struct poly1305_desc_ctx *desc, u8 *dst)
+void poly1305_final(struct poly1305_desc_ctx *desc, u8 *dst)
{
if (unlikely(desc->buflen)) {
desc->buf[desc->buflen++] = 1;
memset(desc->buf + desc->buflen, 0,
POLY1305_BLOCK_SIZE - desc->buflen);
- poly1305_core_blocks(&desc->h, &desc->core_r, desc->buf, 1, 0);
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_blocks_arch(&desc->state, desc->buf,
+ POLY1305_BLOCK_SIZE, 0);
+ else
+ poly1305_blocks_generic(&desc->state, desc->buf,
+ POLY1305_BLOCK_SIZE, 0);
}
- poly1305_core_emit(&desc->h, desc->s, dst);
+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305))
+ poly1305_emit_arch(&desc->state.h, dst, desc->s);
+ else
+ poly1305_emit_generic(&desc->state.h, dst, desc->s);
*desc = (struct poly1305_desc_ctx){};
}
-EXPORT_SYMBOL_GPL(poly1305_final_generic);
+EXPORT_SYMBOL(poly1305_final);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");