57 lines
3.5 KiB
C
57 lines
3.5 KiB
C
#ifndef COSMOPOLITAN_LIBC_CRYPTO_RIJNDAEL_H_
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#define COSMOPOLITAN_LIBC_CRYPTO_RIJNDAEL_H_
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#include "libc/str/str.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § cryptography » advanced encryption standard ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│─┘
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AES-256 Latency x86 2010+ SSE2
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─────────────── ───────── ──────
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rijndael(14, block, &ctx) 23 ns 218 ns
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unrijndael(14, block, &ctx) 23 ns 690 ns
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rijndaelinit(&ctx, 14, k1, k2) 136 ns 135 ns
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unrijndaelinit(&ctx, 14, k1, k2) 186 ns 639 ns
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Untrustworthy System Viability x86 2010+ SSE2
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────────────────────────────── ───────── ──────
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rijndael(14, block, &ctx) A C
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unrijndael(14, block, &ctx) A C
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rijndaelinit(&ctx, 14, k1, k2) B B
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unrijndaelinit(&ctx, 14, k1, k2) B C
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Comparison Cosmo Rijndael Tiny-AES
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────────────────────────────── ─────── ──────── ────────
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Generalized Math Yes Yes No
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Footprint 1,782 b 9,258 b 903 b
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Performance (New Hardware) ~20 ns ~40 ns ~400 ns
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Performance (Old Hardware) ~400 ns ~40 ns ~400 ns */
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typedef uint32_t aes_block_t _Vector_size(16) aligned(16);
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struct Rijndael {
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union {
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aes_block_t xmm;
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uint32_t u32[4];
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uint8_t u8[16];
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} rk[15];
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};
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void rijndaelinit(struct Rijndael *, uint32_t, aes_block_t, aes_block_t);
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aes_block_t rijndael(uint32_t, aes_block_t, const struct Rijndael *);
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void unrijndaelinit(struct Rijndael *, uint32_t, aes_block_t, aes_block_t);
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aes_block_t unrijndael(uint32_t, aes_block_t, const struct Rijndael *);
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § cryptography » implementation details ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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aligned(64) extern const uint8_t kAesSbox[256];
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aligned(64) extern const uint8_t kAesSboxInverse[256];
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aes_block_t InvMixColumns(aes_block_t) hidden;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CRYPTO_RIJNDAEL_H_ */
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