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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-seabios.seabios.org-0; header-match-seabios.seabios.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Stefan Berger X-Mailman-Version: 3.3.4 Precedence: list Subject: [SeaBIOS] [PATCH 1/2] Add implementations for sha256, sha384, and sha512 List-Id: SeaBIOS mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable Authentication-Results: coreboot.org; auth=pass smtp.auth=mailman@coreboot.org smtp.mailfrom=seabios-bounces@seabios.org X-Spamd-Bar: ------ X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Stefan Berger --- Makefile | 2 +- src/sha.h | 11 +++ src/sha1.c | 8 +- src/sha1.h | 8 -- src/sha256.c | 211 +++++++++++++++++++++++++++++++++++++++++++ src/sha512.c | 244 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/tcgbios.c | 2 +- src/x86.h | 7 ++ 8 files changed, 479 insertions(+), 14 deletions(-) create mode 100644 src/sha.h delete mode 100644 src/sha1.h create mode 100644 src/sha256.c create mode 100644 src/sha512.c diff --git a/Makefile b/Makefile index 3d8943e..c108f87 100644 --- a/Makefile +++ b/Makefile @@ -46,7 +46,7 @@ SRC32FLAT=3D$(SRCBOTH) post.c e820map.c malloc.c romfile.= c x86.c \ fw/mtrr.c fw/xen.c fw/acpi.c fw/mptable.c fw/pirtable.c \ fw/smbios.c fw/romfile_loader.c fw/dsdt_parser.c hw/virtio-ring.c \ hw/virtio-pci.c hw/virtio-mmio.c hw/virtio-blk.c hw/virtio-scsi.c \ - hw/tpm_drivers.c hw/nvme.c + hw/tpm_drivers.c hw/nvme.c sha256.c sha512.c SRC32SEG=3Dstring.c output.c pcibios.c apm.c stacks.c hw/pci.c hw/serialio= .c DIRS=3Dsrc src/hw src/fw vgasrc =20 diff --git a/src/sha.h b/src/sha.h new file mode 100644 index 0000000..edc9437 --- /dev/null +++ b/src/sha.h @@ -0,0 +1,11 @@ +#ifndef __SHA_H +#define __SHA_H + +#include "types.h" // u32 + +void sha1(const u8 *data, u32 length, u8 *hash); +void sha256(const u8 *data, u32 length, u8 *hash); +void sha384(const u8 *data, u32 length, u8 *hash); +void sha512(const u8 *data, u32 length, u8 *hash); + +#endif // sha.h diff --git a/src/sha1.c b/src/sha1.c index 2ecb3cb..e6d80c8 100644 --- a/src/sha1.c +++ b/src/sha1.c @@ -13,7 +13,7 @@ =20 #include "config.h" #include "byteorder.h" // cpu_to_*, __swab64 -#include "sha1.h" // sha1 +#include "sha.h" // sha1 #include "string.h" // memcpy #include "x86.h" // rol =20 @@ -126,11 +126,11 @@ sha1_do(sha1_ctx *ctx, const u8 *data32, u32 length) } =20 =20 -u32 +void sha1(const u8 *data, u32 length, u8 *hash) { if (!CONFIG_TCGBIOS) - return 0; + return; =20 sha1_ctx ctx =3D { .h[0] =3D 0x67452301, @@ -143,5 +143,5 @@ sha1(const u8 *data, u32 length, u8 *hash) sha1_do(&ctx, data, length); memcpy(hash, &ctx.h[0], 20); =20 - return 0; + return; } diff --git a/src/sha1.h b/src/sha1.h deleted file mode 100644 index 07aabf3..0000000 --- a/src/sha1.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef __SHA1_H -#define __SHA1_H - -#include "types.h" // u32 - -u32 sha1(const u8 *data, u32 length, u8 *hash); - -#endif // sha1.h diff --git a/src/sha256.c b/src/sha256.c new file mode 100644 index 0000000..72c3df8 --- /dev/null +++ b/src/sha256.c @@ -0,0 +1,211 @@ +/*************************************************************************= **** + * Copyright (c) 2015-2020 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *************************************************************************= ****/ + +/* + * See: NIST standard for SHA-256 in FIPS PUB 180-4 + */ + +#include "config.h" +#include "byteorder.h" +#include "sha.h" +#include "string.h" +#include "x86.h" + +typedef struct _sha256_ctx { + u32 h[8]; +} sha256_ctx; + +static inline u32 Ch(u32 x, u32 y, u32 z) +{ + return (x & y) | ((x ^ 0xffffffff) & z); +} + +static inline u32 Maj(u32 x, u32 y, u32 z) +{ + return (x & y) | (x & z) | (y & z); +} + +static inline u32 sum0(u32 x) +{ + return ror(x, 2) ^ ror(x, 13) ^ ror(x, 22); +} + +static inline u32 sum1(u32 x) +{ + return ror(x, 6) ^ ror(x, 11) ^ ror(x, 25); +} + +static inline u32 sigma0(u32 x) +{ + return ror(x, 7) ^ ror(x, 18) ^ (x >> 3); +} + +static inline u32 sigma1(u32 x) +{ + return ror(x, 17) ^ ror(x, 19) ^ (x >> 10); +} + +static void sha256_block(u32 *w, sha256_ctx *ctx) +{ + u32 t; + u32 a, b, c, d, e, f, g, h; + u32 T1, T2; + + /* + * FIPS 180-4 4.2.2: SHA256 Constants + */ + static const u32 sha_ko[64] =3D { + 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, + 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, + 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, + 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, + 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, + 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, + 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, + 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, + 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, + 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, + 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, + 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, + 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, + 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, + 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, + 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 + }; + + /* + * FIPS 180-4 6.2.2: step 1 + * + * 0 <=3D i <=3D 15: + * W(t) =3D M(t) + * 16 <=3D i <=3D 63: + * W(t) =3D sigma1(W(t-2)) + W(t-7) + sigma0(W(t-15)) + W(t-16) + */ + + /* w(0)..w(15) are in big endian format */ + for (t =3D 0; t <=3D 15; t++) + w[t] =3D be32_to_cpu(w[t]); + + for (t =3D 16; t <=3D 63; t++) + w[t] =3D sigma1(w[t-2]) + w[t-7] + sigma0(w[t-15]) + w[t-16]; + + /* + * step 2: a =3D H0, b =3D H1, c =3D H2, d =3D H3, e =3D H4, f =3D H5,= g =3D H6, h =3D H7 + */ + a =3D ctx->h[0]; + b =3D ctx->h[1]; + c =3D ctx->h[2]; + d =3D ctx->h[3]; + e =3D ctx->h[4]; + f =3D ctx->h[5]; + g =3D ctx->h[6]; + h =3D ctx->h[7]; + + /* + * step 3: For i =3D 0 to 63: + * T1 =3D h + sum1(e) + Ch(e,f,g) + K(t) + W(t); + * T2 =3D sum0(a) + Maj(a,b,c) + * h =3D g; g =3D f; f =3D e; e =3D d + T1; d =3D c; c =3D b; b =3D= a; a + T1 + T2 + */ + for (t =3D 0; t <=3D 63; t++) { + T1 =3D h + sum1(e) + Ch(e, f, g) + sha_ko[t] + w[t]; + T2 =3D sum0(a) + Maj(a, b, c); + h =3D g; + g =3D f; + f =3D e; + e =3D d + T1; + d =3D c; + c =3D b; + b =3D a; + a =3D T1 + T2; + } + + /* + * step 4: + * H0 =3D a + H0, H1 =3D b + H1, H2 =3D c + H2, H3 =3D d + H3, H4 = =3D e + H4 + */ + ctx->h[0] +=3D a; + ctx->h[1] +=3D b; + ctx->h[2] +=3D c; + ctx->h[3] +=3D d; + ctx->h[4] +=3D e; + ctx->h[5] +=3D f; + ctx->h[6] +=3D g; + ctx->h[7] +=3D h; +} + +static void sha256_do(sha256_ctx *ctx, const u8 *data32, u32 length) +{ + u32 offset; + u16 num; + u32 bits =3D 0; + u32 w[64]; + u64 tmp; + + /* treat data in 64-byte chunks */ + for (offset =3D 0; length - offset >=3D 64; offset +=3D 64) { + memcpy(w, data32 + offset, 64); + sha256_block((u32 *)w, ctx); + bits +=3D (64 * 8); + } + + /* last block with less than 64 bytes */ + num =3D length - offset; + bits +=3D (num << 3); + + memcpy(w, data32 + offset, num); + /* + * FIPS 180-4 5.1: Padding the Message + */ + ((u8 *)w)[num] =3D 0x80; + if (64 - (num + 1) > 0) + memset( &((u8 *)w)[num + 1], 0, 64 - (num + 1)); + + if (num >=3D 56) { + /* cannot append number of bits here */ + sha256_block((u32 *)w, ctx); + memset(w, 0, 60); + } + + /* write number of bits to end of block */ + tmp =3D cpu_to_be64(bits); + memcpy(&w[14], &tmp, 8); + + sha256_block(w, ctx); + + /* need to switch result's endianness */ + for (num =3D 0; num < 8; num++) + ctx->h[num] =3D cpu_to_be32(ctx->h[num]); +} + +void sha256(const u8 *data, u32 length, u8 *hash) +{ + sha256_ctx ctx =3D { + .h =3D { + /* + * FIPS 180-4: 6.2.1 + * -> 5.3.3: initial hash value + */ + 0x6a09e667, + 0xbb67ae85, + 0x3c6ef372, + 0xa54ff53a, + 0x510e527f, + 0x9b05688c, + 0x1f83d9ab, + 0x5be0cd19 + } + }; + + sha256_do(&ctx, data, length); + memcpy(hash, ctx.h, sizeof(ctx.h)); +} diff --git a/src/sha512.c b/src/sha512.c new file mode 100644 index 0000000..fddd9fa --- /dev/null +++ b/src/sha512.c @@ -0,0 +1,244 @@ +/*************************************************************************= **** + * Copyright (c) 2021 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *************************************************************************= ****/ + +/* + * See: NIST standard for SHA-512 and SHA-384 in FIPS PUB 180-4 & RFC 6234 + */ + +#include "config.h" +#include "byteorder.h" +#include "sha.h" +#include "string.h" + +typedef struct _sha512_ctx { + u64 h[8]; +} sha512_ctx; + +static inline u64 ror64(u64 x, u8 n) +{ + return (x >> n) | (x << (64 - n)); +} + +static inline u64 Ch64(u64 x, u64 y, u64 z) +{ + return (x & y) ^ ((x ^ 0xffffffffffffffffULL) & z); +} + +static inline u64 Maj64(u64 x, u64 y, u64 z) +{ + return (x & y) ^ (x & z) ^ (y & z); +} + +static inline u64 sum0_64(u64 x) +{ + return ror64(x, 28) ^ ror64(x, 34) ^ ror64(x, 39); +} + +static inline u64 sum1_64(u64 x) +{ + return ror64(x, 14) ^ ror64(x, 18) ^ ror64(x, 41); +} + +static inline u64 sigma0_64(u64 x) +{ + return ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7); +} + +static inline u64 sigma1_64(u64 x) +{ + return ror64(x, 19) ^ ror64(x, 61) ^ (x >> 6); +} + +static void sha512_block(u64 *w, sha512_ctx *ctx) +{ + u32 t; + u64 a, b, c, d, e, f, g, h; + u64 T1, T2; + + /* + * FIPS 180-4 4.2.2: SHA512 Constants + */ + static const u64 sha_ko[80] =3D { + 0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5= dba58189dbbc, + 0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c= 5ed5da6d8118, + 0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c= 7dc3d5ffb4e2, + 0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19b= f174cf692694, + 0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240c= a1cc77ac9c65, + 0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f9= 88da831153b5, + 0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf59= 7fc7beef0ee4, + 0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x1429= 29670a0e6e70, + 0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x5338= 0d139d95b3df, + 0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x9272= 2c851482353b, + 0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c= 51a30654be30, + 0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106a= a07032bbd1b8, + 0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0= bcb5e19b48a8, + 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e= 6ff3d6b2b8a3, + 0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc7= 02081a6439ec, + 0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc671= 78f2e372532b, + 0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d= 4f7fee6ed178, + 0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b71= 0b35131c471b, + 0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d= 67c49c100d4c, + 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44= 198c4a475817 + }; + + /* + * FIPS 180-4 6.4.2: step 1 + * + * 0 <=3D i <=3D 15: + * W(t) =3D M(t) + * 16 <=3D i <=3D 79: + * W(t) =3D sigma1(W(t-2)) + W(t-7) + sigma0(W(t-15)) + W(t-16) + */ + + /* w(0)..w(15) are in big endian format */ + for (t =3D 0; t <=3D 15; t++) + w[t] =3D be64_to_cpu(w[t]); + + for (t =3D 16; t <=3D 79; t++) + w[t] =3D sigma1_64(w[t-2]) + w[t-7] + sigma0_64(w[t-15]) + w[t-16]; + + /* + * step 2: a =3D H0, b =3D H1, c =3D H2, d =3D H3, e =3D H4, f =3D H5,= g =3D H6, h =3D H7 + */ + a =3D ctx->h[0]; + b =3D ctx->h[1]; + c =3D ctx->h[2]; + d =3D ctx->h[3]; + e =3D ctx->h[4]; + f =3D ctx->h[5]; + g =3D ctx->h[6]; + h =3D ctx->h[7]; + + /* + * step 3: For i =3D 0 to 79: + * T1 =3D h + sum1(e) + Ch(e,f,g) + K(t) + W(t); + * T2 =3D sum0(a) + Maj(a,b,c) + * h =3D g; g =3D f; f =3D e; e =3D d + T1; d =3D c; c =3D b; b =3D= a; a + T1 + T2 + */ + for (t =3D 0; t <=3D 79; t++) { + T1 =3D h + sum1_64(e) + Ch64(e, f, g) + sha_ko[t] + w[t]; + T2 =3D sum0_64(a) + Maj64(a, b, c); + h =3D g; + g =3D f; + f =3D e; + e =3D d + T1; + d =3D c; + c =3D b; + b =3D a; + a =3D T1 + T2; + } + + /* + * step 4: + * H0 =3D a + H0, H1 =3D b + H1, H2 =3D c + H2, H3 =3D d + H3, H4 = =3D e + H4 + */ + ctx->h[0] +=3D a; + ctx->h[1] +=3D b; + ctx->h[2] +=3D c; + ctx->h[3] +=3D d; + ctx->h[4] +=3D e; + ctx->h[5] +=3D f; + ctx->h[6] +=3D g; + ctx->h[7] +=3D h; +} + +static void sha512_do(sha512_ctx *ctx, const u8 *data32, u32 length) +{ + u32 offset; + u16 num; + u64 bits =3D 0; + u64 w[80]; + u64 tmp; + + /* treat data in 128-byte/1024 bit chunks */ + for (offset =3D 0; length - offset >=3D 128; offset +=3D 128) { + memcpy(w, data32 + offset, 128); + sha512_block(w, ctx); + bits +=3D (128 * 8); + } + + /* last block with less than 128 bytes */ + num =3D length - offset; + bits +=3D (num << 3); + + memcpy(w, data32 + offset, num); + /* + * FIPS 180-4 5.1: Padding the Message + */ + ((u8 *)w)[num] =3D 0x80; + if (128 - (num + 1) > 0) + memset( &((u8 *)w)[num + 1], 0, 128 - (num + 1)); + + if (num >=3D 112) { + /* cannot append number of bits here; + * need space for 128 bits (16 bytes) + */ + sha512_block((u64 *)w, ctx); + memset(w, 0, 128); + } + + /* write number of bits to end of the block; we write 64 bits */ + tmp =3D cpu_to_be64(bits); + memcpy(&w[15], &tmp, 8); + + sha512_block(w, ctx); + + /* need to switch result's endianness */ + for (num =3D 0; num < 8; num++) + ctx->h[num] =3D cpu_to_be64(ctx->h[num]); +} + +void sha384(const u8 *data, u32 length, u8 *hash) +{ + sha512_ctx ctx =3D { + .h =3D { + /* + * FIPS 180-4: 6.2.1 + * -> 5.3.4: initial hash value + */ + 0xcbbb9d5dc1059ed8, + 0x629a292a367cd507, + 0x9159015a3070dd17, + 0x152fecd8f70e5939, + 0x67332667ffc00b31, + 0x8eb44a8768581511, + 0xdb0c2e0d64f98fa7, + 0x47b5481dbefa4fa4 + } + }; + + sha512_do(&ctx, data, length); + memcpy(hash, ctx.h, 384/8); +} + +void sha512(const u8 *data, u32 length, u8 *hash) +{ + sha512_ctx ctx =3D { + .h =3D { + /* + * FIPS 180-4: 6.2.1 + * -> 5.3.5: initial hash value + */ + 0x6a09e667f3bcc908, + 0xbb67ae8584caa73b, + 0x3c6ef372fe94f82b, + 0xa54ff53a5f1d36f1, + 0x510e527fade682d1, + 0x9b05688c2b3e6c1f, + 0x1f83d9abfb41bd6b, + 0x5be0cd19137e2179 + } + }; + + sha512_do(&ctx, data, length); + memcpy(hash, ctx.h, sizeof(ctx.h)); +} diff --git a/src/tcgbios.c b/src/tcgbios.c index 4150aa0..a9d62c8 100644 --- a/src/tcgbios.c +++ b/src/tcgbios.c @@ -16,7 +16,7 @@ #include "fw/paravirt.h" // runningOnXen #include "hw/tpm_drivers.h" // tpm_drivers[] #include "output.h" // dprintf -#include "sha1.h" // sha1 +#include "sha.h" // sha1, sha256, ... #include "std/acpi.h" // RSDP_SIGNATURE, rsdt_descriptor #include "std/smbios.h" // struct smbios_entry_point #include "std/tcg.h" // TCG_PC_LOGOVERFLOW diff --git a/src/x86.h b/src/x86.h index c7bb60d..43a9e6d 100644 --- a/src/x86.h +++ b/src/x86.h @@ -140,6 +140,13 @@ static inline u32 rol(u32 val, u16 rol) { return res; } =20 +static inline u32 ror(u32 val, u16 ror) { + u32 res; + asm volatile("rorl %%cl, %%eax" + : "=3Da" (res) : "a" (val), "c" (ror)); + return res; +} + static inline void outb(u8 value, u16 port) { __asm__ __volatile__("outb %b0, %w1" : : "a"(value), "Nd"(port)); } --=20 2.31.1 _______________________________________________ SeaBIOS mailing list -- seabios@seabios.org To unsubscribe send an email to seabios-leave@seabios.org