diff options
Diffstat (limited to 'src/exchange/taler-exchange-httpd_keys.c')
| -rw-r--r-- | src/exchange/taler-exchange-httpd_keys.c | 96 |
1 files changed, 84 insertions, 12 deletions
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c index 695ce9777..60c9c6eb0 100644 --- a/src/exchange/taler-exchange-httpd_keys.c +++ b/src/exchange/taler-exchange-httpd_keys.c @@ -2432,9 +2432,49 @@ TEH_keys_denomination_by_hash2 ( enum TALER_ErrorCode -TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub, - const struct TALER_BlindedPlanchet *bp, - struct TALER_BlindedDenominationSignature *bs) +TEH_keys_denomination_sign_withdraw ( + const struct TALER_DenominationHash *h_denom_pub, + const struct TALER_BlindedPlanchet *bp, + struct TALER_BlindedDenominationSignature *bs) +{ + struct TEH_KeyStateHandle *ksh; + struct HelperDenomination *hd; + + ksh = TEH_keys_get_state (); + if (NULL == ksh) + return TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING; + hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys, + &h_denom_pub->hash); + if (NULL == hd) + return TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN; + if (bp->cipher != hd->denom_pub.cipher) + return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; + switch (hd->denom_pub.cipher) + { + case TALER_DENOMINATION_RSA: + return TALER_CRYPTO_helper_rsa_sign ( + ksh->helpers->rsadh, + &hd->h_details.h_rsa, + bp->details.rsa_blinded_planchet.blinded_msg, + bp->details.rsa_blinded_planchet.blinded_msg_size, + bs); + case TALER_DENOMINATION_CS: + return TALER_CRYPTO_helper_cs_sign_withdraw ( + ksh->helpers->csdh, + &hd->h_details.h_cs, + &bp->details.cs_blinded_planchet, + bs); + default: + return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; + } +} + + +enum TALER_ErrorCode +TEH_keys_denomination_sign_melt ( + const struct TALER_DenominationHash *h_denom_pub, + const struct TALER_BlindedPlanchet *bp, + struct TALER_BlindedDenominationSignature *bs) { struct TEH_KeyStateHandle *ksh; struct HelperDenomination *hd; @@ -2458,7 +2498,7 @@ TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub, bp->details.rsa_blinded_planchet.blinded_msg_size, bs); case TALER_DENOMINATION_CS: - return TALER_CRYPTO_helper_cs_sign ( + return TALER_CRYPTO_helper_cs_sign_melt ( ksh->helpers->csdh, &hd->h_details.h_cs, &bp->details.cs_blinded_planchet, @@ -2470,10 +2510,42 @@ TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub, enum TALER_ErrorCode -TEH_keys_denomination_cs_r_pub (const struct - TALER_DenominationHash *h_denom_pub, - const struct TALER_CsNonce *nonce, - struct TALER_DenominationCSPublicRPairP *r_pub) +TEH_keys_denomination_cs_r_pub_melt ( + const struct TALER_DenominationHash *h_denom_pub, + const struct TALER_CsNonce *nonce, + struct TALER_DenominationCSPublicRPairP *r_pub) +{ + struct TEH_KeyStateHandle *ksh; + struct HelperDenomination *hd; + + ksh = TEH_keys_get_state (); + if (NULL == ksh) + { + return TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING; + } + hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys, + &h_denom_pub->hash); + if (NULL == hd) + { + return TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN; + } + if (TALER_DENOMINATION_CS != hd->denom_pub.cipher) + { + return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; + } + + return TALER_CRYPTO_helper_cs_r_derive_melt (ksh->helpers->csdh, + &hd->h_details.h_cs, + nonce, + r_pub); +} + + +enum TALER_ErrorCode +TEH_keys_denomination_cs_r_pub_withdraw ( + const struct TALER_DenominationHash *h_denom_pub, + const struct TALER_CsNonce *nonce, + struct TALER_DenominationCSPublicRPairP *r_pub) { struct TEH_KeyStateHandle *ksh; struct HelperDenomination *hd; @@ -2494,10 +2566,10 @@ TEH_keys_denomination_cs_r_pub (const struct return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE; } - return TALER_CRYPTO_helper_cs_r_derive (ksh->helpers->csdh, - &hd->h_details.h_cs, - nonce, - r_pub); + return TALER_CRYPTO_helper_cs_r_derive_withdraw (ksh->helpers->csdh, + &hd->h_details.h_cs, + nonce, + r_pub); } |