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Move ECDSA_size() to a more sensible place in this file

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This commit is contained in:
tb 2023-07-05 12:27:36 +00:00
parent b4a65d296e
commit c0ee283e97
1 changed files with 28 additions and 28 deletions
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56
lib/libcrypto/ecdsa/ecdsa.c
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@ -1,4 +1,4 @@
/* $OpenBSD: ecdsa.c,v 1.1 2023/07/05 12:18:21 tb Exp $ */ /* $OpenBSD: ecdsa.c,v 1.2 2023/07/05 12:27:36 tb Exp $ */
/* ==================================================================== /* ====================================================================
* Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved. * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
* *
@ -158,6 +158,33 @@ ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
return 1; return 1;
} }
int
ECDSA_size(const EC_KEY *r)
{
const EC_GROUP *group;
const BIGNUM *order = NULL;
ECDSA_SIG sig;
int ret = 0;
if (r == NULL)
goto err;
if ((group = EC_KEY_get0_group(r)) == NULL)
goto err;
if ((order = EC_GROUP_get0_order(group)) == NULL)
goto err;
sig.r = (BIGNUM *)order;
sig.s = (BIGNUM *)order;
if ((ret = i2d_ECDSA_SIG(&sig, NULL)) < 0)
ret = 0;
err:
return ret;
}
/* /*
* FIPS 186-5, section 6.4.1, step 2: convert hashed message into an integer. * FIPS 186-5, section 6.4.1, step 2: convert hashed message into an integer.
* Use the order_bits leftmost bits if it exceeds the group order. * Use the order_bits leftmost bits if it exceeds the group order.
@ -792,30 +819,3 @@ ECDSA_verify(int type, const unsigned char *digest, int digest_len,
} }
return key->meth->verify(type, digest, digest_len, sigbuf, sig_len, key); return key->meth->verify(type, digest, digest_len, sigbuf, sig_len, key);
} }
int
ECDSA_size(const EC_KEY *r)
{
const EC_GROUP *group;
const BIGNUM *order = NULL;
ECDSA_SIG sig;
int ret = 0;
if (r == NULL)
goto err;
if ((group = EC_KEY_get0_group(r)) == NULL)
goto err;
if ((order = EC_GROUP_get0_order(group)) == NULL)
goto err;
sig.r = (BIGNUM *)order;
sig.s = (BIGNUM *)order;
if ((ret = i2d_ECDSA_SIG(&sig, NULL)) < 0)
ret = 0;
err:
return ret;
}