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Use stock libscrypt
This commit is contained in:
mikolajp
parent
71b83dc8cd
commit
e4d467ff24
100
jets/e/scr.c
100
jets/e/scr.c
@ -5,8 +5,16 @@
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#include <stdint.h>
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#include <errno.h>
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#include <crypto_scrypt.h>
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#include <libscrypt.h>
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/**
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* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
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* Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
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* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
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*/
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void libscrypt_PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t,
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uint64_t, uint8_t *, size_t);
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static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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uint64_t, uint32_t, uint32_t, uint8_t *, size_t);
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@ -17,8 +25,8 @@ static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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u3qes_hsl(u3_atom p, u3_atom pl,
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u3_atom s, u3_atom sl,
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u3_atom n,
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u3_atom r,
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u3_atom z,
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u3_atom r,
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u3_atom z,
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u3_atom d)
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{
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// asserting that n is power of 2 in _crypto_scrypt
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@ -30,7 +38,7 @@ static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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(((c3_d)r * 128 * ((c3_d)n + z - 1)) <= (1 << 30))))
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return u3m_bail(c3__exit);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1);
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u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s);
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b_p[pl] = 0; b_s[sl]=0;
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c3_y* buf = u3a_malloc(d);
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@ -73,7 +81,7 @@ static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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return u3m_bail(c3__exit);
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c3_w pl = u3r_met(3, p); c3_w sl = u3r_met(3, s);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1);
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u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s);
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b_p[pl] = 0; b_s[sl]=0;
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c3_y* buf = u3a_malloc(d);
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@ -112,12 +120,12 @@ static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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(c != 0)))
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return u3m_bail(c3__exit);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1);
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u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s);
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b_p[pl] = 0; b_s[sl]=0;
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c3_y* buf = u3a_malloc(d);
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PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d);
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libscrypt_PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d);
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u3_noun res = u3i_bytes(d, buf);
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u3a_free(b_p); u3a_free(b_s); u3a_free(buf);
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@ -147,12 +155,12 @@ static int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t,
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return u3m_bail(c3__exit);
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c3_w pl = u3r_met(3, p); c3_w sl = u3r_met(3, s);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1);
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c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1);
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u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s);
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b_p[pl] = 0; b_s[sl]=0;
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c3_y* buf = u3a_malloc(d);
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PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d);
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libscrypt_PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d);
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u3_noun res = u3i_bytes(d, buf);
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u3a_free(b_p); u3a_free(b_s); u3a_free(buf);
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@ -213,77 +221,5 @@ _crypto_scrypt(const uint8_t * passwd, size_t passwdlen,
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const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p,
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uint8_t * buf, size_t buflen)
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{
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void * B0, * V0, * XY0;
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uint8_t * B;
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uint32_t * V;
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uint32_t * XY;
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uint32_t i;
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if (((N & (N-1)) != 0) || N == 0)
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goto err0;
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/* Sanity-check parameters. */
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#if SIZE_MAX > UINT32_MAX
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if (buflen > (((uint64_t)(1) << 32) - 1) * 32) {
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errno = EFBIG;
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goto err0;
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}
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#endif
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if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) {
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errno = EFBIG;
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goto err0;
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}
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if (((N & (N - 1)) != 0) || (N == 0)) {
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errno = EINVAL;
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goto err0;
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}
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int test_size_max = (r > SIZE_MAX / 128 / p) || (N > SIZE_MAX / 128 / r);
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#if SIZE_MAX / 256 <= UINT32_MAX
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test_size_max = (r > (SIZE_MAX - 64) / 256) || test_size_max;
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#endif
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if(test_size_max) {
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errno = ENOMEM;
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goto err0;
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}
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/* Allocate memory. */
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if ((B0 = u3a_malloc(128 * r * p + 63)) == NULL)
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goto err0;
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B = (uint8_t *)(((uintptr_t)(B0) + 63) & ~ (uintptr_t)(63));
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if ((XY0 = u3a_malloc(256 * r + 64 + 63)) == NULL)
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goto err1;
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XY = (uint32_t *)(((uintptr_t)(XY0) + 63) & ~ (uintptr_t)(63));
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if ((V0 = u3a_malloc(128 * r * N + 63)) == NULL)
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goto err2;
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V = (uint32_t *)(((uintptr_t)(V0) + 63) & ~ (uintptr_t)(63));
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/* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */
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PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r);
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/* 2: for i = 0 to p - 1 do */
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for (i = 0; i < p; i++) {
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/* 3: B_i <-- MF(B_i, N) */
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smix(&B[i * 128 * r], r, N, V, XY);
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}
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/* 5: DK <-- PBKDF2(P, B, 1, dkLen) */
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PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen);
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/* Free memory. */
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u3a_free(V0);
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u3a_free(XY0);
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u3a_free(B0);
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/* Success! */
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return (0);
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err2:
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u3a_free(XY0);
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err1:
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u3a_free(B0);
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err0:
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/* Failure! */
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return (-1);
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return libscrypt_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen);
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}
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@ -267,7 +267,14 @@ sigsegv_dep = meson.get_compiler('c').find_library('sigsegv')
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# For these libs we provide fallback bundle
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cmark_dep = dependency('libcmark', version: '0.12.0', fallback: ['commonmark-legacy', 'cmark_dep'])
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urbitscrypt_dep = dependency('libscrypt', fallback: ['urbit-scrypt', 'urbit_scrypt_dep'])
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compiler_scrypt = meson.get_compiler('c').find_library('libscrypt')
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if compiler_scrypt.found()
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urbitscrypt_dep = compiler_scrypt
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else
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urbitscrypt_dep = dependency('libscrypt', fallback: ['urbit-scrypt', 'urbit_scrypt_dep'])
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endif
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ed25519_dep = dependency('ed25519', fallback: ['ed25519', 'ed25519_dep'])
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murmur3_dep = dependency('murmur3', fallback: ['murmur3', 'murmur3_dep'])
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http_parser_dep = dependency('http-parser', version: '0.1.0', fallback: ['http-parser-legacy', 'http_parser_dep'])
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