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Differential D11068 Diff 29833 sys/geom/eli/g_eli_hmac.c

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sys/geom/eli/g_eli_hmac.c

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#include <errno.h> #include <errno.h>
#include <assert.h> #include <assert.h>
#include <openssl/evp.h> #include <openssl/evp.h>
#define _OpenSSL_ #define _OpenSSL_
#endif #endif
#include <geom/eli/g_eli.h> #include <geom/eli/g_eli.h>
void void
g_eli_crypto_hmac_init(struct hmac_ctx *ctx, const uint8_t *hkey, g_eli_crypto_hmac_init(struct hmac_ctx *ctx, const char hkey[],
size_t hkeylen) size_t hkeylen)
{ {
u_char k_ipad[128], k_opad[128], key[128]; u_char k_ipad[128], k_opad[128], key[128];
SHA512_CTX lctx; SHA512_CTX lctx;
u_int i; u_int i;
bzero(key, sizeof(key)); bzero(key, sizeof(key));
if (hkeylen == 0) if (hkeylen == 0)
▲ Show 20 Lines • Show All 47 Lines • ▼ Show 20 Linesg_eli_crypto_hmac_final(struct hmac_ctx *ctx, uint8_t *md, size_t mdsize)
/* mdsize == 0 means "Give me the whole hash!" */ /* mdsize == 0 means "Give me the whole hash!" */
if (mdsize == 0) if (mdsize == 0)
mdsize = SHA512_MDLEN; mdsize = SHA512_MDLEN;
bcopy(digest, md, mdsize); bcopy(digest, md, mdsize);
explicit_bzero(digest, sizeof(digest)); explicit_bzero(digest, sizeof(digest));
} }
void void
g_eli_crypto_hmac(const uint8_t *hkey, size_t hkeysize, const uint8_t *data, g_eli_crypto_hmac(const char hkey[], size_t hkeysize, const uint8_t *data,
size_t datasize, uint8_t *md, size_t mdsize) size_t datasize, uint8_t *md, size_t mdsize)
{ {
struct hmac_ctx ctx; struct hmac_ctx ctx;
g_eli_crypto_hmac_init(&ctx, hkey, hkeysize); g_eli_crypto_hmac_init(&ctx, hkey, hkeysize);
g_eli_crypto_hmac_update(&ctx, data, datasize); g_eli_crypto_hmac_update(&ctx, data, datasize);
g_eli_crypto_hmac_final(&ctx, md, mdsize); g_eli_crypto_hmac_final(&ctx, md, mdsize);
} }
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