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introduce invalid key type

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This commit is contained in:
Christian Grothoff 2021-11-01 23:49:13 +01:00
parent 9358b886f1
commit 1408e1587b
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC
3 changed files with 31 additions and 3 deletions
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2
src/exchangedb/exchange-0001.sql
View File

@ -24,7 +24,7 @@ SELECT _v.register_patch('exchange-0001', NULL, NULL);
CREATE TABLE IF NOT EXISTS denominations
(denominations_serial BIGSERIAL UNIQUE
,denom_pub_hash BYTEA PRIMARY KEY CHECK (LENGTH(denom_pub_hash)=64)
,denom_type INT4 NOT NULL DEFAULT (0)
,denom_type INT4 NOT NULL DEFAULT (1) -- 1 == RSA (for now, remove default later!)
,age_restrictions INT4 NOT NULL DEFAULT (0)
,denom_pub BYTEA NOT NULL
,master_sig BYTEA NOT NULL CHECK (LENGTH(master_sig)=64)

9
src/include/taler_crypto_lib.h
View File

@ -484,15 +484,20 @@ GNUNET_NETWORK_STRUCT_END
enum TALER_DenominationCipher
{
/**
* Invalid type of signature.
*/
TALER_DENOMINATION_INVALID = 0,
/**
* RSA blind signature.
*/
TALER_DENOMINATION_RSA = 0,
TALER_DENOMINATION_RSA = 1,
/**
* Clause-Schnorr blind signature.
*/
// TALER_DENOMINATION_CS = 1
// TALER_DENOMINATION_CS = 2
};

23
src/util/denom.c
View File

@ -94,6 +94,9 @@ TALER_denom_pub_verify (const struct TALER_DenominationPublicKey *denom_pub,
}
switch (denom_pub->cipher)
{
case TALER_DENOMINATION_INVALID:
GNUNET_break (0);
return GNUNET_NO;
case TALER_DENOMINATION_RSA:
if (GNUNET_OK !=
GNUNET_CRYPTO_rsa_verify (&c_hash->hash,
@ -117,12 +120,15 @@ TALER_denom_pub_free (struct TALER_DenominationPublicKey *denom_pub)
{
switch (denom_pub->cipher)
{
case TALER_DENOMINATION_INVALID:
return;
case TALER_DENOMINATION_RSA:
if (NULL != denom_pub->details.rsa_public_key)
{
GNUNET_CRYPTO_rsa_public_key_free (denom_pub->details.rsa_public_key);
denom_pub->details.rsa_public_key = NULL;
}
denom_pub->cipher = TALER_DENOMINATION_INVALID;
return;
// TODO: add case for Clause-Schnorr
default:
@ -136,12 +142,15 @@ TALER_denom_priv_free (struct TALER_DenominationPrivateKey *denom_priv)
{
switch (denom_priv->cipher)
{
case TALER_DENOMINATION_INVALID:
return;
case TALER_DENOMINATION_RSA:
if (NULL != denom_priv->details.rsa_private_key)
{
GNUNET_CRYPTO_rsa_private_key_free (denom_priv->details.rsa_private_key);
denom_priv->details.rsa_private_key = NULL;
}
denom_priv->cipher = TALER_DENOMINATION_INVALID;
return;
// TODO: add case for Clause-Schnorr
default:
@ -155,12 +164,15 @@ TALER_denom_sig_free (struct TALER_DenominationSignature *denom_sig)
{
switch (denom_sig->cipher)
{
case TALER_DENOMINATION_INVALID:
return;
case TALER_DENOMINATION_RSA:
if (NULL != denom_sig->details.rsa_signature)
{
GNUNET_CRYPTO_rsa_signature_free (denom_sig->details.rsa_signature);
denom_sig->details.rsa_signature = NULL;
}
denom_sig->cipher = TALER_DENOMINATION_INVALID;
return;
// TODO: add case for Clause-Schnorr
default:
@ -182,6 +194,7 @@ TALER_blinded_denom_sig_free (
denom_sig->details.blinded_rsa_signature);
denom_sig->details.blinded_rsa_signature = NULL;
}
denom_sig->cipher = TALER_DENOMINATION_INVALID;
return;
// TODO: add case for Clause-Schnorr
default:
@ -223,6 +236,8 @@ TALER_denom_sig_deep_copy (struct TALER_DenominationSignature *denom_dst,
*denom_dst = *denom_src; /* shallow copy */
switch (denom_src->cipher)
{
case TALER_DENOMINATION_INVALID:
return;
case TALER_DENOMINATION_RSA:
denom_dst->details.rsa_signature
= GNUNET_CRYPTO_rsa_signature_dup (
@ -243,6 +258,8 @@ TALER_blinded_denom_sig_deep_copy (
*denom_dst = *denom_src; /* shallow copy */
switch (denom_src->cipher)
{
case TALER_DENOMINATION_INVALID:
return;
case TALER_DENOMINATION_RSA:
denom_dst->details.blinded_rsa_signature
= GNUNET_CRYPTO_rsa_signature_dup (
@ -265,6 +282,8 @@ TALER_denom_pub_cmp (const struct TALER_DenominationPublicKey *denom1,
return (denom1->age_mask > denom2->age_mask) ? 1 : -1;
switch (denom1->cipher)
{
case TALER_DENOMINATION_INVALID:
return 0;
case TALER_DENOMINATION_RSA:
return GNUNET_CRYPTO_rsa_public_key_cmp (denom1->details.rsa_public_key,
denom2->details.rsa_public_key);
@ -284,6 +303,8 @@ TALER_denom_sig_cmp (const struct TALER_DenominationSignature *sig1,
return (sig1->cipher > sig2->cipher) ? 1 : -1;
switch (sig1->cipher)
{
case TALER_DENOMINATION_INVALID:
return 0;
case TALER_DENOMINATION_RSA:
return GNUNET_CRYPTO_rsa_signature_cmp (sig1->details.rsa_signature,
sig2->details.rsa_signature);
@ -304,6 +325,8 @@ TALER_blinded_denom_sig_cmp (
return (sig1->cipher > sig2->cipher) ? 1 : -1;
switch (sig1->cipher)
{
case TALER_DENOMINATION_INVALID:
return 0;
case TALER_DENOMINATION_RSA:
return GNUNET_CRYPTO_rsa_signature_cmp (sig1->details.blinded_rsa_signature,
sig2->details.blinded_rsa_signature);