diff options
Diffstat (limited to 'src/backend/utils/adt/cryptohashes.c')
| -rw-r--r-- | src/backend/utils/adt/cryptohashes.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/src/backend/utils/adt/cryptohashes.c b/src/backend/utils/adt/cryptohashes.c deleted file mode 100644 index 5de294a7fda..00000000000 --- a/src/backend/utils/adt/cryptohashes.c +++ /dev/null @@ -1,190 +0,0 @@ -/*------------------------------------------------------------------------- - * - * cryptohashes.c - * Cryptographic hash functions - * - * Portions Copyright (c) 2018-2020, PostgreSQL Global Development Group - * - * - * IDENTIFICATION - * src/backend/utils/adt/cryptohashes.c - * - *------------------------------------------------------------------------- - */ -#include "postgres.h" - -#include "common/cryptohash.h" -#include "common/md5.h" -#include "common/sha2.h" -#include "utils/builtins.h" - - -/* - * MD5 - */ - -/* MD5 produces a 16 byte (128 bit) hash; double it for hex */ -#define MD5_HASH_LEN 32 - -/* - * Create an MD5 hash of a text value and return it as hex string. - */ -Datum -md5_text(PG_FUNCTION_ARGS) -{ - text *in_text = PG_GETARG_TEXT_PP(0); - size_t len; - char hexsum[MD5_HASH_LEN + 1]; - - /* Calculate the length of the buffer using varlena metadata */ - len = VARSIZE_ANY_EXHDR(in_text); - - /* get the hash result */ - if (pg_md5_hash(VARDATA_ANY(in_text), len, hexsum) == false) - ereport(ERROR, - (errcode(ERRCODE_OUT_OF_MEMORY), - errmsg("out of memory"))); - - /* convert to text and return it */ - PG_RETURN_TEXT_P(cstring_to_text(hexsum)); -} - -/* - * Create an MD5 hash of a bytea value and return it as a hex string. - */ -Datum -md5_bytea(PG_FUNCTION_ARGS) -{ - bytea *in = PG_GETARG_BYTEA_PP(0); - size_t len; - char hexsum[MD5_HASH_LEN + 1]; - - len = VARSIZE_ANY_EXHDR(in); - if (pg_md5_hash(VARDATA_ANY(in), len, hexsum) == false) - ereport(ERROR, - (errcode(ERRCODE_OUT_OF_MEMORY), - errmsg("out of memory"))); - - PG_RETURN_TEXT_P(cstring_to_text(hexsum)); -} - - -/* - * SHA-2 variants - */ - -Datum -sha224_bytea(PG_FUNCTION_ARGS) -{ - bytea *in = PG_GETARG_BYTEA_PP(0); - const uint8 *data; - size_t len; - pg_cryptohash_ctx *ctx; - unsigned char buf[PG_SHA224_DIGEST_LENGTH]; - bytea *result; - - len = VARSIZE_ANY_EXHDR(in); - data = (unsigned char *) VARDATA_ANY(in); - - ctx = pg_cryptohash_create(PG_SHA224); - if (pg_cryptohash_init(ctx) < 0) - elog(ERROR, "could not initialize %s context", "SHA224"); - if (pg_cryptohash_update(ctx, data, len) < 0) - elog(ERROR, "could not update %s context", "SHA224"); - if (pg_cryptohash_final(ctx, buf) < 0) - elog(ERROR, "could not finalize %s context", "SHA224"); - pg_cryptohash_free(ctx); - - result = palloc(sizeof(buf) + VARHDRSZ); - SET_VARSIZE(result, sizeof(buf) + VARHDRSZ); - memcpy(VARDATA(result), buf, sizeof(buf)); - - PG_RETURN_BYTEA_P(result); -} - -Datum -sha256_bytea(PG_FUNCTION_ARGS) -{ - bytea *in = PG_GETARG_BYTEA_PP(0); - const uint8 *data; - size_t len; - pg_cryptohash_ctx *ctx; - unsigned char buf[PG_SHA256_DIGEST_LENGTH]; - bytea *result; - - len = VARSIZE_ANY_EXHDR(in); - data = (unsigned char *) VARDATA_ANY(in); - - ctx = pg_cryptohash_create(PG_SHA256); - if (pg_cryptohash_init(ctx) < 0) - elog(ERROR, "could not initialize %s context", "SHA256"); - if (pg_cryptohash_update(ctx, data, len) < 0) - elog(ERROR, "could not update %s context", "SHA256"); - if (pg_cryptohash_final(ctx, buf) < 0) - elog(ERROR, "could not finalize %s context", "SHA256"); - pg_cryptohash_free(ctx); - - result = palloc(sizeof(buf) + VARHDRSZ); - SET_VARSIZE(result, sizeof(buf) + VARHDRSZ); - memcpy(VARDATA(result), buf, sizeof(buf)); - - PG_RETURN_BYTEA_P(result); -} - -Datum -sha384_bytea(PG_FUNCTION_ARGS) -{ - bytea *in = PG_GETARG_BYTEA_PP(0); - const uint8 *data; - size_t len; - pg_cryptohash_ctx *ctx; - unsigned char buf[PG_SHA384_DIGEST_LENGTH]; - bytea *result; - - len = VARSIZE_ANY_EXHDR(in); - data = (unsigned char *) VARDATA_ANY(in); - - ctx = pg_cryptohash_create(PG_SHA384); - if (pg_cryptohash_init(ctx) < 0) - elog(ERROR, "could not initialize %s context", "SHA384"); - if (pg_cryptohash_update(ctx, data, len) < 0) - elog(ERROR, "could not update %s context", "SHA384"); - if (pg_cryptohash_final(ctx, buf) < 0) - elog(ERROR, "could not finalize %s context", "SHA384"); - pg_cryptohash_free(ctx); - - result = palloc(sizeof(buf) + VARHDRSZ); - SET_VARSIZE(result, sizeof(buf) + VARHDRSZ); - memcpy(VARDATA(result), buf, sizeof(buf)); - - PG_RETURN_BYTEA_P(result); -} - -Datum -sha512_bytea(PG_FUNCTION_ARGS) -{ - bytea *in = PG_GETARG_BYTEA_PP(0); - const uint8 *data; - size_t len; - pg_cryptohash_ctx *ctx; - unsigned char buf[PG_SHA512_DIGEST_LENGTH]; - bytea *result; - - len = VARSIZE_ANY_EXHDR(in); - data = (unsigned char *) VARDATA_ANY(in); - - ctx = pg_cryptohash_create(PG_SHA512); - if (pg_cryptohash_init(ctx) < 0) - elog(ERROR, "could not initialize %s context", "SHA512"); - if (pg_cryptohash_update(ctx, data, len) < 0) - elog(ERROR, "could not update %s context", "SHA512"); - if (pg_cryptohash_final(ctx, buf) < 0) - elog(ERROR, "could not finalize %s context", "SHA512"); - pg_cryptohash_free(ctx); - - result = palloc(sizeof(buf) + VARHDRSZ); - SET_VARSIZE(result, sizeof(buf) + VARHDRSZ); - memcpy(VARDATA(result), buf, sizeof(buf)); - - PG_RETURN_BYTEA_P(result); -} |