From: Thomas Pornin Date: Thu, 16 Aug 2018 16:56:12 +0000 (+0200) Subject: Added SHAKE implementation. X-Git-Url: https://bearssl.org/gitweb//home/git/?a=commitdiff_plain;h=966078b3373a273f8417ede42ecab32a414dc109;p=BearSSL Added SHAKE implementation. --- diff --git a/inc/bearssl_kdf.h b/inc/bearssl_kdf.h index f018d7e..955b843 100644 --- a/inc/bearssl_kdf.h +++ b/inc/bearssl_kdf.h @@ -81,6 +81,30 @@ extern "C" { * Note that the HKDF total output size (the number of bytes that * HKDF-Expand is willing to produce) is limited: if the hash output size * is _n_ bytes, then the maximum output size is _255*n_. + * + * ## SHAKE + * + * SHAKE is defined in + * [FIPS 202](https://csrc.nist.gov/publications/detail/fips/202/final) + * under two versions: SHAKE128 and SHAKE256, offering an alleged + * "security level" of 128 and 256 bits, respectively (SHAKE128 is + * about 20 to 25% faster than SHAKE256). SHAKE internally relies on + * the Keccak family of sponge functions, not on any externally provided + * hash function. Contrary to HKDF, SHAKE does not have a concept of + * either a "salt" or an "info" string. The API consists in four + * functions: + * + * - `br_shake_init()`: initialize a SHAKE context for a given + * security level. + * + * - `br_shake_inject()`: inject more input bytes. This function may be + * called repeatedly if the input data is provided by chunks. + * + * - `br_shake_flip()`: end the data injection process, and start the + * data production process. + * + * - `br_shake_produce()`: get the next bytes of output. This function + * may be called several times to obtain the full output by chunks. */ /** @@ -178,6 +202,81 @@ void br_hkdf_flip(br_hkdf_context *hc); size_t br_hkdf_produce(br_hkdf_context *hc, const void *info, size_t info_len, void *out, size_t out_len); +/** + * \brief SHAKE context. + * + * The HKDF context is initialized with a "security level". The internal + * notion is called "capacity"; the capacity is twice the security level + * (for instance, SHAKE128 has capacity 256). + * + * The caller is responsible for allocating the context where + * appropriate. Context initialisation and usage incurs no dynamic + * allocation, so there is no release function. + */ +typedef struct { +#ifndef BR_DOXYGEN_IGNORE + unsigned char dbuf[200]; + size_t dptr; + size_t rate; + uint64_t A[25]; +#endif +} br_shake_context; + +/** + * \brief SHAKE context initialization. + * + * The context is initialized for the provided "security level". + * Internally, this sets the "capacity" to twice the security level; + * thus, for SHAKE128, the `security_level` parameter should be 128, + * which corresponds to a 256-bit capacity. + * + * Allowed security levels are all multiples of 32, from 32 to 768, + * inclusive. Larger security levels imply lower performance; levels + * beyond 256 bits don't make much sense. Standard levels are 128 + * and 256 bits (for SHAKE128 and SHAKE256, respectively). + * + * \param sc SHAKE context to initialise. + * \param security_level security level (in bits). + */ +void br_shake_init(br_shake_context *sc, int security_level); + +/** + * \brief SHAKE input injection. + * + * This function injects some more input bytes ("key material") into + * SHAKE. This function may be called several times, after `br_shake_init()` + * but before `br_shake_flip()`. + * + * \param sc SHAKE context. + * \param data extra input bytes. + * \param len number of extra input bytes. + */ +void br_shake_inject(br_shake_context *sc, const void *data, size_t len); + +/** + * \brief SHAKE switch to production phase. + * + * This call terminates the input injection process, and starts the + * output production process. + * + * \param sc SHAKE context. + */ +void br_shake_flip(br_shake_context *hc); + +/** + * \brief SHAKE output production. + * + * Produce more output bytes from the current state. This function may be + * called several times, but only after `br_shake_flip()`. + * + * There is no practical limit to the number of bytes that may be produced. + * + * \param sc SHAKE context. + * \param out destination buffer for the SHAKE output. + * \param len the length of the requested output (in bytes). + */ +void br_shake_produce(br_shake_context *sc, void *out, size_t len); + #ifdef __cplusplus } #endif diff --git a/mk/Rules.mk b/mk/Rules.mk index b480bd6..9da7675 100644 --- a/mk/Rules.mk +++ b/mk/Rules.mk @@ -124,6 +124,7 @@ OBJ = \ $(OBJDIR)$Pi32_tmont$O \ $(OBJDIR)$Pi62_modpow2$O \ $(OBJDIR)$Phkdf$O \ + $(OBJDIR)$Pshake$O \ $(OBJDIR)$Phmac$O \ $(OBJDIR)$Phmac_ct$O \ $(OBJDIR)$Paesctr_drbg$O \ @@ -727,6 +728,9 @@ $(OBJDIR)$Pi62_modpow2$O: src$Pint$Pi62_modpow2.c $(HEADERSPRIV) $(OBJDIR)$Phkdf$O: src$Pkdf$Phkdf.c $(HEADERSPRIV) $(CC) $(CFLAGS) $(INCFLAGS) $(CCOUT)$(OBJDIR)$Phkdf$O src$Pkdf$Phkdf.c +$(OBJDIR)$Pshake$O: src$Pkdf$Pshake.c $(HEADERSPRIV) + $(CC) $(CFLAGS) $(INCFLAGS) $(CCOUT)$(OBJDIR)$Pshake$O src$Pkdf$Pshake.c + $(OBJDIR)$Phmac$O: src$Pmac$Phmac.c $(HEADERSPRIV) $(CC) $(CFLAGS) $(INCFLAGS) $(CCOUT)$(OBJDIR)$Phmac$O src$Pmac$Phmac.c diff --git a/mk/mkrules.sh b/mk/mkrules.sh index eea159b..ff11be3 100755 --- a/mk/mkrules.sh +++ b/mk/mkrules.sh @@ -172,6 +172,7 @@ coresrc=" \ src/int/i32_tmont.c \ src/int/i62_modpow2.c \ src/kdf/hkdf.c \ + src/kdf/shake.c \ src/mac/hmac.c \ src/mac/hmac_ct.c \ src/rand/aesctr_drbg.c \ diff --git a/src/kdf/shake.c b/src/kdf/shake.c new file mode 100644 index 0000000..80d7176 --- /dev/null +++ b/src/kdf/shake.c @@ -0,0 +1,590 @@ +/* + * Copyright (c) 2018 Thomas Pornin + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "inner.h" + +/* + * Round constants. + */ +static const uint64_t RC[] = { + 0x0000000000000001, 0x0000000000008082, + 0x800000000000808A, 0x8000000080008000, + 0x000000000000808B, 0x0000000080000001, + 0x8000000080008081, 0x8000000000008009, + 0x000000000000008A, 0x0000000000000088, + 0x0000000080008009, 0x000000008000000A, + 0x000000008000808B, 0x800000000000008B, + 0x8000000000008089, 0x8000000000008003, + 0x8000000000008002, 0x8000000000000080, + 0x000000000000800A, 0x800000008000000A, + 0x8000000080008081, 0x8000000000008080, + 0x0000000080000001, 0x8000000080008008 +}; + +/* + * XOR a block of data into the provided state. This supports only + * blocks whose length is a multiple of 64 bits. + */ +static void +xor_block(uint64_t *A, const void *data, size_t rate) +{ + size_t u; + + for (u = 0; u < rate; u += 8) { + A[u >> 3] ^= br_dec64le((const unsigned char *)data + u); + } +} + +/* + * Process a block with the provided data. The data length must be a + * multiple of 8 (in bytes); normally, this is the "rate". + */ +static void +process_block(uint64_t *A) +{ + uint64_t t0, t1, t2, t3, t4; + uint64_t tt0, tt1, tt2, tt3; + uint64_t t, kt; + uint64_t c0, c1, c2, c3, c4, bnn; + int j; + + /* + * Compute the 24 rounds. This loop is partially unrolled (each + * iteration computes two rounds). + */ + for (j = 0; j < 24; j += 2) { + + tt0 = A[ 1] ^ A[ 6]; + tt1 = A[11] ^ A[16]; + tt0 ^= A[21] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 4] ^ A[ 9]; + tt3 = A[14] ^ A[19]; + tt0 ^= A[24]; + tt2 ^= tt3; + t0 = tt0 ^ tt2; + + tt0 = A[ 2] ^ A[ 7]; + tt1 = A[12] ^ A[17]; + tt0 ^= A[22] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 0] ^ A[ 5]; + tt3 = A[10] ^ A[15]; + tt0 ^= A[20]; + tt2 ^= tt3; + t1 = tt0 ^ tt2; + + tt0 = A[ 3] ^ A[ 8]; + tt1 = A[13] ^ A[18]; + tt0 ^= A[23] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 1] ^ A[ 6]; + tt3 = A[11] ^ A[16]; + tt0 ^= A[21]; + tt2 ^= tt3; + t2 = tt0 ^ tt2; + + tt0 = A[ 4] ^ A[ 9]; + tt1 = A[14] ^ A[19]; + tt0 ^= A[24] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 2] ^ A[ 7]; + tt3 = A[12] ^ A[17]; + tt0 ^= A[22]; + tt2 ^= tt3; + t3 = tt0 ^ tt2; + + tt0 = A[ 0] ^ A[ 5]; + tt1 = A[10] ^ A[15]; + tt0 ^= A[20] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 3] ^ A[ 8]; + tt3 = A[13] ^ A[18]; + tt0 ^= A[23]; + tt2 ^= tt3; + t4 = tt0 ^ tt2; + + A[ 0] = A[ 0] ^ t0; + A[ 5] = A[ 5] ^ t0; + A[10] = A[10] ^ t0; + A[15] = A[15] ^ t0; + A[20] = A[20] ^ t0; + A[ 1] = A[ 1] ^ t1; + A[ 6] = A[ 6] ^ t1; + A[11] = A[11] ^ t1; + A[16] = A[16] ^ t1; + A[21] = A[21] ^ t1; + A[ 2] = A[ 2] ^ t2; + A[ 7] = A[ 7] ^ t2; + A[12] = A[12] ^ t2; + A[17] = A[17] ^ t2; + A[22] = A[22] ^ t2; + A[ 3] = A[ 3] ^ t3; + A[ 8] = A[ 8] ^ t3; + A[13] = A[13] ^ t3; + A[18] = A[18] ^ t3; + A[23] = A[23] ^ t3; + A[ 4] = A[ 4] ^ t4; + A[ 9] = A[ 9] ^ t4; + A[14] = A[14] ^ t4; + A[19] = A[19] ^ t4; + A[24] = A[24] ^ t4; + A[ 5] = (A[ 5] << 36) | (A[ 5] >> (64 - 36)); + A[10] = (A[10] << 3) | (A[10] >> (64 - 3)); + A[15] = (A[15] << 41) | (A[15] >> (64 - 41)); + A[20] = (A[20] << 18) | (A[20] >> (64 - 18)); + A[ 1] = (A[ 1] << 1) | (A[ 1] >> (64 - 1)); + A[ 6] = (A[ 6] << 44) | (A[ 6] >> (64 - 44)); + A[11] = (A[11] << 10) | (A[11] >> (64 - 10)); + A[16] = (A[16] << 45) | (A[16] >> (64 - 45)); + A[21] = (A[21] << 2) | (A[21] >> (64 - 2)); + A[ 2] = (A[ 2] << 62) | (A[ 2] >> (64 - 62)); + A[ 7] = (A[ 7] << 6) | (A[ 7] >> (64 - 6)); + A[12] = (A[12] << 43) | (A[12] >> (64 - 43)); + A[17] = (A[17] << 15) | (A[17] >> (64 - 15)); + A[22] = (A[22] << 61) | (A[22] >> (64 - 61)); + A[ 3] = (A[ 3] << 28) | (A[ 3] >> (64 - 28)); + A[ 8] = (A[ 8] << 55) | (A[ 8] >> (64 - 55)); + A[13] = (A[13] << 25) | (A[13] >> (64 - 25)); + A[18] = (A[18] << 21) | (A[18] >> (64 - 21)); + A[23] = (A[23] << 56) | (A[23] >> (64 - 56)); + A[ 4] = (A[ 4] << 27) | (A[ 4] >> (64 - 27)); + A[ 9] = (A[ 9] << 20) | (A[ 9] >> (64 - 20)); + A[14] = (A[14] << 39) | (A[14] >> (64 - 39)); + A[19] = (A[19] << 8) | (A[19] >> (64 - 8)); + A[24] = (A[24] << 14) | (A[24] >> (64 - 14)); + bnn = ~A[12]; + kt = A[ 6] | A[12]; + c0 = A[ 0] ^ kt; + kt = bnn | A[18]; + c1 = A[ 6] ^ kt; + kt = A[18] & A[24]; + c2 = A[12] ^ kt; + kt = A[24] | A[ 0]; + c3 = A[18] ^ kt; + kt = A[ 0] & A[ 6]; + c4 = A[24] ^ kt; + A[ 0] = c0; + A[ 6] = c1; + A[12] = c2; + A[18] = c3; + A[24] = c4; + bnn = ~A[22]; + kt = A[ 9] | A[10]; + c0 = A[ 3] ^ kt; + kt = A[10] & A[16]; + c1 = A[ 9] ^ kt; + kt = A[16] | bnn; + c2 = A[10] ^ kt; + kt = A[22] | A[ 3]; + c3 = A[16] ^ kt; + kt = A[ 3] & A[ 9]; + c4 = A[22] ^ kt; + A[ 3] = c0; + A[ 9] = c1; + A[10] = c2; + A[16] = c3; + A[22] = c4; + bnn = ~A[19]; + kt = A[ 7] | A[13]; + c0 = A[ 1] ^ kt; + kt = A[13] & A[19]; + c1 = A[ 7] ^ kt; + kt = bnn & A[20]; + c2 = A[13] ^ kt; + kt = A[20] | A[ 1]; + c3 = bnn ^ kt; + kt = A[ 1] & A[ 7]; + c4 = A[20] ^ kt; + A[ 1] = c0; + A[ 7] = c1; + A[13] = c2; + A[19] = c3; + A[20] = c4; + bnn = ~A[17]; + kt = A[ 5] & A[11]; + c0 = A[ 4] ^ kt; + kt = A[11] | A[17]; + c1 = A[ 5] ^ kt; + kt = bnn | A[23]; + c2 = A[11] ^ kt; + kt = A[23] & A[ 4]; + c3 = bnn ^ kt; + kt = A[ 4] | A[ 5]; + c4 = A[23] ^ kt; + A[ 4] = c0; + A[ 5] = c1; + A[11] = c2; + A[17] = c3; + A[23] = c4; + bnn = ~A[ 8]; + kt = bnn & A[14]; + c0 = A[ 2] ^ kt; + kt = A[14] | A[15]; + c1 = bnn ^ kt; + kt = A[15] & A[21]; + c2 = A[14] ^ kt; + kt = A[21] | A[ 2]; + c3 = A[15] ^ kt; + kt = A[ 2] & A[ 8]; + c4 = A[21] ^ kt; + A[ 2] = c0; + A[ 8] = c1; + A[14] = c2; + A[15] = c3; + A[21] = c4; + A[ 0] = A[ 0] ^ RC[j + 0]; + + tt0 = A[ 6] ^ A[ 9]; + tt1 = A[ 7] ^ A[ 5]; + tt0 ^= A[ 8] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[24] ^ A[22]; + tt3 = A[20] ^ A[23]; + tt0 ^= A[21]; + tt2 ^= tt3; + t0 = tt0 ^ tt2; + + tt0 = A[12] ^ A[10]; + tt1 = A[13] ^ A[11]; + tt0 ^= A[14] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 0] ^ A[ 3]; + tt3 = A[ 1] ^ A[ 4]; + tt0 ^= A[ 2]; + tt2 ^= tt3; + t1 = tt0 ^ tt2; + + tt0 = A[18] ^ A[16]; + tt1 = A[19] ^ A[17]; + tt0 ^= A[15] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[ 6] ^ A[ 9]; + tt3 = A[ 7] ^ A[ 5]; + tt0 ^= A[ 8]; + tt2 ^= tt3; + t2 = tt0 ^ tt2; + + tt0 = A[24] ^ A[22]; + tt1 = A[20] ^ A[23]; + tt0 ^= A[21] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[12] ^ A[10]; + tt3 = A[13] ^ A[11]; + tt0 ^= A[14]; + tt2 ^= tt3; + t3 = tt0 ^ tt2; + + tt0 = A[ 0] ^ A[ 3]; + tt1 = A[ 1] ^ A[ 4]; + tt0 ^= A[ 2] ^ tt1; + tt0 = (tt0 << 1) | (tt0 >> 63); + tt2 = A[18] ^ A[16]; + tt3 = A[19] ^ A[17]; + tt0 ^= A[15]; + tt2 ^= tt3; + t4 = tt0 ^ tt2; + + A[ 0] = A[ 0] ^ t0; + A[ 3] = A[ 3] ^ t0; + A[ 1] = A[ 1] ^ t0; + A[ 4] = A[ 4] ^ t0; + A[ 2] = A[ 2] ^ t0; + A[ 6] = A[ 6] ^ t1; + A[ 9] = A[ 9] ^ t1; + A[ 7] = A[ 7] ^ t1; + A[ 5] = A[ 5] ^ t1; + A[ 8] = A[ 8] ^ t1; + A[12] = A[12] ^ t2; + A[10] = A[10] ^ t2; + A[13] = A[13] ^ t2; + A[11] = A[11] ^ t2; + A[14] = A[14] ^ t2; + A[18] = A[18] ^ t3; + A[16] = A[16] ^ t3; + A[19] = A[19] ^ t3; + A[17] = A[17] ^ t3; + A[15] = A[15] ^ t3; + A[24] = A[24] ^ t4; + A[22] = A[22] ^ t4; + A[20] = A[20] ^ t4; + A[23] = A[23] ^ t4; + A[21] = A[21] ^ t4; + A[ 3] = (A[ 3] << 36) | (A[ 3] >> (64 - 36)); + A[ 1] = (A[ 1] << 3) | (A[ 1] >> (64 - 3)); + A[ 4] = (A[ 4] << 41) | (A[ 4] >> (64 - 41)); + A[ 2] = (A[ 2] << 18) | (A[ 2] >> (64 - 18)); + A[ 6] = (A[ 6] << 1) | (A[ 6] >> (64 - 1)); + A[ 9] = (A[ 9] << 44) | (A[ 9] >> (64 - 44)); + A[ 7] = (A[ 7] << 10) | (A[ 7] >> (64 - 10)); + A[ 5] = (A[ 5] << 45) | (A[ 5] >> (64 - 45)); + A[ 8] = (A[ 8] << 2) | (A[ 8] >> (64 - 2)); + A[12] = (A[12] << 62) | (A[12] >> (64 - 62)); + A[10] = (A[10] << 6) | (A[10] >> (64 - 6)); + A[13] = (A[13] << 43) | (A[13] >> (64 - 43)); + A[11] = (A[11] << 15) | (A[11] >> (64 - 15)); + A[14] = (A[14] << 61) | (A[14] >> (64 - 61)); + A[18] = (A[18] << 28) | (A[18] >> (64 - 28)); + A[16] = (A[16] << 55) | (A[16] >> (64 - 55)); + A[19] = (A[19] << 25) | (A[19] >> (64 - 25)); + A[17] = (A[17] << 21) | (A[17] >> (64 - 21)); + A[15] = (A[15] << 56) | (A[15] >> (64 - 56)); + A[24] = (A[24] << 27) | (A[24] >> (64 - 27)); + A[22] = (A[22] << 20) | (A[22] >> (64 - 20)); + A[20] = (A[20] << 39) | (A[20] >> (64 - 39)); + A[23] = (A[23] << 8) | (A[23] >> (64 - 8)); + A[21] = (A[21] << 14) | (A[21] >> (64 - 14)); + bnn = ~A[13]; + kt = A[ 9] | A[13]; + c0 = A[ 0] ^ kt; + kt = bnn | A[17]; + c1 = A[ 9] ^ kt; + kt = A[17] & A[21]; + c2 = A[13] ^ kt; + kt = A[21] | A[ 0]; + c3 = A[17] ^ kt; + kt = A[ 0] & A[ 9]; + c4 = A[21] ^ kt; + A[ 0] = c0; + A[ 9] = c1; + A[13] = c2; + A[17] = c3; + A[21] = c4; + bnn = ~A[14]; + kt = A[22] | A[ 1]; + c0 = A[18] ^ kt; + kt = A[ 1] & A[ 5]; + c1 = A[22] ^ kt; + kt = A[ 5] | bnn; + c2 = A[ 1] ^ kt; + kt = A[14] | A[18]; + c3 = A[ 5] ^ kt; + kt = A[18] & A[22]; + c4 = A[14] ^ kt; + A[18] = c0; + A[22] = c1; + A[ 1] = c2; + A[ 5] = c3; + A[14] = c4; + bnn = ~A[23]; + kt = A[10] | A[19]; + c0 = A[ 6] ^ kt; + kt = A[19] & A[23]; + c1 = A[10] ^ kt; + kt = bnn & A[ 2]; + c2 = A[19] ^ kt; + kt = A[ 2] | A[ 6]; + c3 = bnn ^ kt; + kt = A[ 6] & A[10]; + c4 = A[ 2] ^ kt; + A[ 6] = c0; + A[10] = c1; + A[19] = c2; + A[23] = c3; + A[ 2] = c4; + bnn = ~A[11]; + kt = A[ 3] & A[ 7]; + c0 = A[24] ^ kt; + kt = A[ 7] | A[11]; + c1 = A[ 3] ^ kt; + kt = bnn | A[15]; + c2 = A[ 7] ^ kt; + kt = A[15] & A[24]; + c3 = bnn ^ kt; + kt = A[24] | A[ 3]; + c4 = A[15] ^ kt; + A[24] = c0; + A[ 3] = c1; + A[ 7] = c2; + A[11] = c3; + A[15] = c4; + bnn = ~A[16]; + kt = bnn & A[20]; + c0 = A[12] ^ kt; + kt = A[20] | A[ 4]; + c1 = bnn ^ kt; + kt = A[ 4] & A[ 8]; + c2 = A[20] ^ kt; + kt = A[ 8] | A[12]; + c3 = A[ 4] ^ kt; + kt = A[12] & A[16]; + c4 = A[ 8] ^ kt; + A[12] = c0; + A[16] = c1; + A[20] = c2; + A[ 4] = c3; + A[ 8] = c4; + A[ 0] = A[ 0] ^ RC[j + 1]; + t = A[ 5]; + A[ 5] = A[18]; + A[18] = A[11]; + A[11] = A[10]; + A[10] = A[ 6]; + A[ 6] = A[22]; + A[22] = A[20]; + A[20] = A[12]; + A[12] = A[19]; + A[19] = A[15]; + A[15] = A[24]; + A[24] = A[ 8]; + A[ 8] = t; + t = A[ 1]; + A[ 1] = A[ 9]; + A[ 9] = A[14]; + A[14] = A[ 2]; + A[ 2] = A[13]; + A[13] = A[23]; + A[23] = A[ 4]; + A[ 4] = A[21]; + A[21] = A[16]; + A[16] = A[ 3]; + A[ 3] = A[17]; + A[17] = A[ 7]; + A[ 7] = t; + } +} + +/* see bearssl_kdf.h */ +void +br_shake_init(br_shake_context *sc, int security_level) +{ + sc->rate = 200 - (size_t)(security_level >> 2); + sc->dptr = 0; + memset(sc->A, 0, sizeof sc->A); + sc->A[ 1] = ~(uint64_t)0; + sc->A[ 2] = ~(uint64_t)0; + sc->A[ 8] = ~(uint64_t)0; + sc->A[12] = ~(uint64_t)0; + sc->A[17] = ~(uint64_t)0; + sc->A[20] = ~(uint64_t)0; +} + +/* see bearssl_kdf.h */ +void +br_shake_inject(br_shake_context *sc, const void *data, size_t len) +{ + const unsigned char *buf; + size_t rate, dptr; + + buf = data; + rate = sc->rate; + dptr = sc->dptr; + while (len > 0) { + size_t clen; + + clen = rate - dptr; + if (clen > len) { + clen = len; + } + memcpy(sc->dbuf + dptr, buf, clen); + dptr += clen; + buf += clen; + len -= clen; + if (dptr == rate) { + xor_block(sc->A, sc->dbuf, rate); + process_block(sc->A); + dptr = 0; + } + } + sc->dptr = dptr; +} + +/* see bearssl_kdf.h */ +void +br_shake_flip(br_shake_context *sc) +{ + /* + * We apply padding and pre-XOR the value into the state. We + * set dptr to the end of the buffer, so that first call to + * shake_extract() will process the block. + */ + if ((sc->dptr + 1) == sc->rate) { + sc->dbuf[sc->dptr ++] = 0x9F; + } else { + sc->dbuf[sc->dptr ++] = 0x1F; + memset(sc->dbuf + sc->dptr, 0x00, sc->rate - sc->dptr - 1); + sc->dbuf[sc->rate - 1] = 0x80; + sc->dptr = sc->rate; + } + xor_block(sc->A, sc->dbuf, sc->rate); +} + +/* see bearssl_kdf.h */ +void +br_shake_produce(br_shake_context *sc, void *out, size_t len) +{ + unsigned char *buf; + size_t dptr, rate; + + buf = out; + dptr = sc->dptr; + rate = sc->rate; + while (len > 0) { + size_t clen; + + if (dptr == rate) { + unsigned char *dbuf; + uint64_t *A; + + A = sc->A; + dbuf = sc->dbuf; + process_block(A); + br_enc64le(dbuf + 0, A[ 0]); + br_enc64le(dbuf + 8, ~A[ 1]); + br_enc64le(dbuf + 16, ~A[ 2]); + br_enc64le(dbuf + 24, A[ 3]); + br_enc64le(dbuf + 32, A[ 4]); + br_enc64le(dbuf + 40, A[ 5]); + br_enc64le(dbuf + 48, A[ 6]); + br_enc64le(dbuf + 56, A[ 7]); + br_enc64le(dbuf + 64, ~A[ 8]); + br_enc64le(dbuf + 72, A[ 9]); + br_enc64le(dbuf + 80, A[10]); + br_enc64le(dbuf + 88, A[11]); + br_enc64le(dbuf + 96, ~A[12]); + br_enc64le(dbuf + 104, A[13]); + br_enc64le(dbuf + 112, A[14]); + br_enc64le(dbuf + 120, A[15]); + br_enc64le(dbuf + 128, A[16]); + br_enc64le(dbuf + 136, ~A[17]); + br_enc64le(dbuf + 144, A[18]); + br_enc64le(dbuf + 152, A[19]); + br_enc64le(dbuf + 160, ~A[20]); + br_enc64le(dbuf + 168, A[21]); + br_enc64le(dbuf + 176, A[22]); + br_enc64le(dbuf + 184, A[23]); + br_enc64le(dbuf + 192, A[24]); + dptr = 0; + } + clen = rate - dptr; + if (clen > len) { + clen = len; + } + memcpy(buf, sc->dbuf + dptr, clen); + dptr += clen; + buf += clen; + len -= clen; + } + sc->dptr = dptr; +} diff --git a/test/test_crypto.c b/test/test_crypto.c index 740178d..dab1a5f 100644 --- a/test/test_crypto.c +++ b/test/test_crypto.c @@ -1130,6 +1130,458 @@ test_HKDF(void) fflush(stdout); } +/* + * Known-answer test vectors for SHAKE128, from the NIST validation test + * suite. Each vector is a pair (input,output). + */ +static const char *const KAT_SHAKE128[] = { + + "e4e932fc9907620ebebffd32b10fda7890a5bc20e5f41d5589882a18c2960e7aafd8730ee697469e5b0abb1d84de92ddba169802e31570374ef9939fde2b960e6b34ac7a65d36bacba4cd33bfa028cbbba486f32367548cb3a36dacf422924d0e0a7e3285ee158a2a42e4b765da3507b56e54998263b2c7b14e7078e35b74127d5d7220018e995e6e1572db5f3e8678357922f1cfd90a5afa6b420c600fd737b136c70e9dd14", + "459ce4fa824ee1910a678abc77c1f769", + + "18636f702f216b1b9302e59d82192f4e002f82d526c3f04cbd4f9b9f0bcd2535ed7a67d326da66bdf7fc821ef0fff1a905d56c81e4472856863908d104301133ad111e39552cd542ef78d9b35f20419b893f4a93aee848e9f86ae3fd53d27fea7fb1fc69631fa0f3a5ff51267785086ab4f682d42baf394b3b6992e9a0bb58a38ce0692df9bbaf183e18523ee1352c5fad817e0c04a3e1c476be7f5e92f482a6fb29cd4bbf09ea", + "b7b9db481898f888e5ee4ed629859844", + + 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"5feaf99c15f48851943ff9baa6e5055d8377f0dd347aa4dbece51ad3a6d9ce0c01aee9fe2260b80a4673a909b532adcdd1e421c32d6460535b5fe392a58d2634979a5a104d6c470aa3306c400b061db91c463b2848297bca2bc26d1864ba49d7ff949ebca50fbf79a5e63716dc82b600bd52ca7437ed774d169f6bf02e46487956fba2230f34cd2a0485484d", + + NULL +}; + +/* + * Known-answer test vectors for SHAKE256, from the NIST validation test + * suite. Each vector is a pair (input,output). + */ +static const char *const KAT_SHAKE256[] = { + "389fe2a4eecdab928818c1aa6f14fabd41b8ff1a246247b05b1b4672171ce1008f922683529f3ad8dca192f268b66679068063b7ed25a1b5129ad4a1fa22c673cc1105d1aad6d82f4138783a9fe07d77451897277ed27e6fefec2cb56eb2494d18a5e7559d7b6fdddf66db4cbc9926fe270901327e70c8241798b4761dd652d49ad434d8d4", + "50717d9da0d528c3da799a3307ec74fc086a7d45acfb157774ac28e01ecc74f7", + + "719effd45ed3a8394bf6c49b43f35879176a598601bd6f598867f966a38f512d21dc51b1488c162cbdc00301a41a09f2078a26937c652cfe02b8c4c92ddbb23583495ba825ae845eb2425c5b6856bda48c2cafae0c0c2e1764942d94be50da2b5d8b24a23b647a37f124d691d8cefbf76ef8fbc0fbdafb0a74a53aaf9f165075784ab485d4d4", + "6881babbb48e9eea72eeb3524db56e4efc323f3350b6be3cdb1f9c6826e359da", + + 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"02f17bf86dc7b7f9c3fb96e4b3a10ca574cd0f8dedda50f3dda8008ce9e8fec9", + + "152009657b680243c03af091d05cce6d1e0c3220a1f178ae1c521daba386694f5bab51cd819b9be1ae1c43a859571eb59d8cbd613c039462e5465ba0b28db544f57a10113406ccf772bc9fe5b02538e0b483225209c1eca447ab870e955befae6bf30dd89d92ddae9580ccf0dfac6415ec592a9a0f14c79acce9679f52d65fb8468012cbc225152d9ed2", + "b341f4114eee547eddeb2e7363b11d1e31d5e1eb5c18ea702b9d96b404938bad", + + "eaf4249b5347c2395104a96d39fbf5322c9af2f8ec6a8c45efdc06a2b246efb5502952ab53b52ed9ca8f25a29cd1789b1b5333eddc29a5fbc76c13456a3eae8c9208c1381d062ff60a061da5d26cec73fb7a6a43eace4953f92cd01bc97ed078da19da095842afd938f1f83f84d53703f397fec2bd635f94ada5a3eb78103ebf4de503e8ad7295cb7dd91e", + "d14c7422c0832687786f1722f69c81fbe25b5889886bf85c7c7271bf7575517b", + + "a03e55ee76150a6498634099ae418184228320bc838dbfe8276913761516ec9021226f4b597ba622a0823ca499618169c79eb44af2f182d1cc53caefd458a3ed7bbea0a5854653f2b3c20f659f70f23ae786238a8d0e59c29ef49d53125e50abf43b6f65c31f16bc174e43468717dddfcb63f5e21e8d4ba0e674140a97cffab1d5c165f1d9aef968154c60ad", + "fa889888d3b984c1577fe7c38ca86f0df859291502fe0b2f6e82c778babff377", + + "2fb4178a0af42b155a739e2910b004e0781c1bca697ca479bf8e71430aefc043883cc7a151779013d2ad07a47cd652b5bdfd604130a1c565115ac51ff3c0ae56b5886c1ab2f0572e385e4fc33c430b874b46aedec49f9b6f45c08be3633bdde99ee02d7e9325276b74cc9d0fb6bfd85e093f2c2a8d3dcfa24308ec18c229f2072b8b32545ee0a9d46e3f1a0f53", + "254a115343d0ebd865e5d3ff6c61c3f9b65fe96ea92865a5681b1f1f0d1b00e9", + + "dd344dd531f415a590a9c1838f242af8605bc0c29c1a71283ff5cd8af581683c94c48095e9e9e042b73804e0fd467ecb78699930696f3b6a9890108b99a0e4384e8a51bbadf99b53c358d8cef9fd545a97a13399861458f35a2e86309009c546136d086f058c0c7fbdf083750cb17250c5ebd8247c6f906c8db978a26123d30dec58ecdb7a0afd6face84efcbdca", + "2d56bef53fde76ef9849f97be2ed22d3c3d10f23b049eca2a8aba0d1fec33119", + + "353111e447fee6f0bd05d562f30626ab9fb06384a620c49034a5eb3c0bc6d1eb1b86015053e6041ab8ac1cd7b4633512b0a318bfe592e2da6eabb44aa2bead0ba238158c2ea5db56bd7342efccf9d7fe76b8a6af45e0ad594816915f65749054f1d1b7627e4355ecf4e3af72e4d0f5b51877751c6f110f57e86ce942fcef640c31d94e98ecc959238683cb28a3f178", + "11b27034db724b46882a3086815a835947d19322885e08595be271c511ef783d", + + "c4e5a5afa1c7d2edd5a21db8b4891ed53c926131f82c69d323b3f410114281fecbc9102bfa5f298e06d91fbd7e9b9661bbae43e7c013f3796557cf2db568de7c94a7cbf5a53ee9326ab4740cadbf1a0b1f59b92040156b977eb4c047a1f34a0c66a85f776a0d1ac34a5ca30b099cb0bbb2ba4c453edbd815b7f14fc69e8cce968bf453171374c428eef8342459db6359", + "f1ebe75725c26b82ffb59c5a577edaa2f24e49c9070cb9ca007e65938f33dae4", + + "3b79da982ac5f2a0646374472826361c9d2d2e481414db678e67e0967e5cf3cdd0c1f570293362207191ecd78fb063347350d8135a4f02614d1de12feb70a0046939c078d7d673fea589460265290334d217d6231274ae0d3891e6f50da725f710c983d9bb16ede20833caef34f9dec3c36a6f9fc4eaa71256ac3a136b6a494dcc5985ba5e5c9773a377c0c78387bc8a4d", + "1fc7c4802141e2db7a9199c747d885a72d8f068262863843c9f4cbb19db38994", + + "cf9552db2edd8947fd7fbbb2f7189a578343e742891ae6fb85fa0f64da8706e468f0cdc5607539db5726a2679aeddf3ac2ce711e886eff71dad203132e6ac283164e814414c7f686b011fd02c95f8c262920e9725c811a22c1339e0de16e5acd0036d620f2dda98e30c9324c2b778961e0c0b507ad5b205463a448199c9bb60b4f303420a1be3b3cfed5ab0d693cbe331036", + "b51adb0c2375c9d302ba61859040fa4bfa0091275eec1053fc13950aae706c25", + + "4ebc9225da5f168c07ef62f621d742cd7c71bbd063269f5e51d65ef164791fe90e070f8b0e96f9499ec21843ee52290fd219c3b5b719ebfedcefe4efbf6b4490d57e4df27d59796f37d35734110b96fd634f5f20bc3de9cd1c28479464be84270ae7f16211f0be8839e8c8d0734ab22097dd371859d9be527a4b2fe83bba0637170ba6e3b1a2ef1c0cca121ffa57a4ffd78af2", + "54a3fd90ae00dfc77644ca16b4964c3b32a4641c5305704ee25d9f8fdbfb5c7f", + + 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"8d8001e2c096f1b88e7c9224a086efd4797fbf74a8033a2d422a2b6b8f6747e4", + "2e975f6a8a14f0704d51b13667d8195c219f71e6345696c49fa4b9d08e9225d3d39393425152c97e71dd24601c11abcfa0f12f53c680bd3ae757b8134a9c10d429615869217fdd5885c4db174985703a6d6de94a667eac3023443a8337ae1bc601b76d7d38ec3c34463105f0d3949d78e562a039e4469548b609395de5a4fd43c46ca9fd6ee29ada5efc07d84d553249450dab4a49c483ded250c9338f85cd937ae66bb436f3b4026e859fda1ca571432f3bfc09e7c03ca4d183b741111ca0483d0edabc03feb23b17ee48e844ba2408d9dcfd0139d2e8c7310125aee801c61ab7900d1efc47c078281766f361c5e6111346235e1dc38325666c", + + NULL +}; + +static void +test_SHAKE_KAT(int security_level, const char *const *kat) +{ + size_t u; + + for (u = 0; kat[u] != NULL; u += 2) { + unsigned char msg[250], out[250], ref[250]; + size_t msg_len, out_len, v; + br_shake_context sc; + + msg_len = hextobin(msg, kat[u]); + out_len = hextobin(ref, kat[u + 1]); + br_shake_init(&sc, security_level); + br_shake_inject(&sc, msg, msg_len); + br_shake_flip(&sc); + br_shake_produce(&sc, out, out_len); + check_equals("KAT 1", out, ref, out_len); + + br_shake_init(&sc, security_level); + for (v = 0; v < msg_len; v ++) { + br_shake_inject(&sc, msg + v, 1); + } + br_shake_flip(&sc); + br_shake_produce(&sc, out, out_len); + check_equals("KAT 2", out, ref, out_len); + + br_shake_init(&sc, security_level); + br_shake_inject(&sc, msg, msg_len); + br_shake_flip(&sc); + for (v = 0; v < out_len; v ++) { + unsigned char x; + + br_shake_produce(&sc, &x, 1); + if (x != ref[v]) { + fprintf(stderr, "KAT 3 (byte %u)\n", + (unsigned)v); + exit(EXIT_FAILURE); + } + } + + printf("."); + fflush(stdout); + } +} + +static void +test_SHAKE_MonteCarlo(int security_level, + size_t minoutlen, size_t maxoutlen, const char *smsg, const char *sref) +{ + unsigned char out[250], ref[250]; + size_t len, rlen, outlen, range; + int i, j; + + hextobin(out, smsg); + outlen = maxoutlen; + range = maxoutlen - minoutlen + 1; + for (j = 0; j < 100; j ++) { + for (i = 1; i < 1001; i ++) { + br_shake_context sc; + + len = outlen; + br_shake_init(&sc, security_level); + br_shake_inject(&sc, out, 16); + br_shake_flip(&sc); + br_shake_produce(&sc, out, len); + if (len < 16) { + memset(out + len, 0, 16 - len); + } + outlen = minoutlen + + (br_dec16be(out + len - 2) % range); + } + printf("."); + fflush(stdout); + } + rlen = hextobin(ref, sref); + if (rlen != len) { + fprintf(stderr, "MC: bad length (%u vs %u)\n", + (unsigned)len, (unsigned)rlen); + exit(EXIT_FAILURE); + } + check_equals("KAT MC", out, ref, len); +} + +static void +test_SHAKE(void) +{ + printf("Test SHAKE: "); + fflush(stdout); + + test_SHAKE_KAT(128, KAT_SHAKE128); + + printf(" "); + fflush(stdout); + + test_SHAKE_MonteCarlo(128, 16, 140, + "c8b310cb97efa3855434998fa81c7674", + "4aa371f0099b04a909f9b1680e8b52a21c6510ea2640137d501ffa114bf84717b1f725d64bae4ae5d87a"); + + printf(" "); + fflush(stdout); + + test_SHAKE_KAT(256, KAT_SHAKE256); + + printf(" "); + fflush(stdout); + + test_SHAKE_MonteCarlo(256, 2, 250, + "48a0321b3653e4e86446d00f6a036efd", + "d4c8c26ded38cca426d8d1c8f8aedb5c543541333839deca8713cfd8684480fe923f57c3a5c89cb61427c220c7"); + + printf(" done.\n"); + fflush(stdout); +} + static void test_HMAC_DRBG(void) { @@ -8368,6 +8820,7 @@ static const struct { STU(multihash), STU(HMAC), STU(HKDF), + STU(SHAKE), STU(HMAC_DRBG), STU(AESCTR_DRBG), STU(PRF), diff --git a/test/test_speed.c b/test/test_speed.c index b1cd9f2..f7c7b0b 100644 --- a/test/test_speed.c +++ b/test/test_speed.c @@ -532,6 +532,83 @@ SPEED_EAX(AES, aes, 256, ct64) SPEED_EAX(AES, aes, 256, x86ni) SPEED_EAX(AES, aes, 256, pwr8) +static void +test_speed_shake_inner(int security_level) +{ + unsigned char buf[8192]; + br_shake_context sc; + int i; + long num; + + memset(buf, 'D', sizeof buf); + br_shake_init(&sc, security_level); + for (i = 0; i < 10; i ++) { + br_shake_inject(&sc, buf, sizeof buf); + } + num = 10; + for (;;) { + clock_t begin, end; + double tt; + long k; + + begin = clock(); + for (k = num; k > 0; k --) { + br_shake_inject(&sc, buf, sizeof buf); + } + end = clock(); + tt = (double)(end - begin) / CLOCKS_PER_SEC; + if (tt >= 2.0) { + printf("SHAKE%-3d (inject) %8.2f MB/s\n", + security_level, + ((double)sizeof buf) * (double)num + / (tt * 1000000.0)); + fflush(stdout); + break; + } + num <<= 1; + } + + br_shake_flip(&sc); + for (i = 0; i < 10; i ++) { + br_shake_produce(&sc, buf, sizeof buf); + } + + num = 10; + for (;;) { + clock_t begin, end; + double tt; + long k; + + begin = clock(); + for (k = num; k > 0; k --) { + br_shake_produce(&sc, buf, sizeof buf); + } + end = clock(); + tt = (double)(end - begin) / CLOCKS_PER_SEC; + if (tt >= 2.0) { + printf("SHAKE%-3d (produce) %8.2f MB/s\n", + security_level, + ((double)sizeof buf) * (double)num + / (tt * 1000000.0)); + fflush(stdout); + break; + } + num <<= 1; + } +} + +static void +test_speed_shake128(void) +{ + test_speed_shake_inner(128); +} + +static void +test_speed_shake256(void) +{ + test_speed_shake_inner(256); +} + static const unsigned char RSA_N[] = { 0xE9, 0xF2, 0x4A, 0x2F, 0x96, 0xDF, 0x0A, 0x23, 0x01, 0x85, 0xF1, 0x2C, 0xB2, 0xA8, 0xEF, 0x23, @@ -1159,7 +1236,7 @@ test_speed_i31(void) }; unsigned char tmp[60 + sizeof bp]; - uint32_t p[10], x[10], y[10], z[10], p0i; + uint32_t p[10], x[10], y[10], z[10], uu[30], p0i; int i; long num; @@ -1241,6 +1318,30 @@ test_speed_i31(void) } num <<= 1; } + + for (i = 0; i < 10; i ++) { + br_i31_moddiv(x, y, p, p0i, uu); + } + num = 10; + for (;;) { + clock_t begin, end; + double tt; + long k; + + begin = clock(); + for (k = num; k > 0; k --) { + br_i31_moddiv(x, y, p, p0i, uu); + } + end = clock(); + tt = (double)(end - begin) / CLOCKS_PER_SEC; + if (tt >= 2.0) { + printf("%-30s %8.2f ops/s\n", "i31 moddiv", + (double)num / tt); + fflush(stdout); + break; + } + num <<= 1; + } } #if 0 @@ -1484,6 +1585,9 @@ static const struct { STU(eax_aes192_pwr8), STU(eax_aes256_pwr8), + STU(shake128), + STU(shake256), + STU(rsa_i15), STU(rsa_i31), STU(rsa_i32),