diff options
Diffstat (limited to 'src/include/taler_crypto_lib.h')
| -rw-r--r-- | src/include/taler_crypto_lib.h | 305 |
1 files changed, 284 insertions, 21 deletions
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h index db663612c..3156e63ed 100644 --- a/src/include/taler_crypto_lib.h +++ b/src/include/taler_crypto_lib.h @@ -27,6 +27,263 @@ /* ****************** Coin crypto primitives ************* */ +GNUNET_NETWORK_STRUCT_BEGIN + +/** + * Type of public keys for Taler reserves. + */ +struct TALER_ReservePublicKey +{ + /** + * Taler uses EdDSA for reserves. + */ + struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub; +}; + + +/** + * Type of private keys for Taler reserves. + */ +struct TALER_ReservePrivateKey +{ + /** + * Taler uses EdDSA for reserves. + */ + struct GNUNET_CRYPTO_EddsaPrivateKey eddsa_priv; +}; + + +/** + * Type of signatures used with Taler reserves. + */ +struct TALER_ReserveSignature +{ + /** + * Taler uses EdDSA for reserves. + */ + struct GNUNET_CRYPTO_EddsaSignature eddsa_signature; +}; + + +/** + * Type of public keys to for merchant authorizations. + * Merchants can issue refunds using the corresponding + * private key. + */ +struct TALER_MerchantPublicKey +{ + /** + * Taler uses EdDSA for merchants. + */ + struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub; +}; + + +/** + * Type of private keys for merchant authorizations. + * Merchants can issue refunds using the corresponding + * private key. + */ +struct TALER_MerchantPrivateKey +{ + /** + * Taler uses EdDSA for merchants. + */ + struct GNUNET_CRYPTO_EddsaPrivateKey eddsa_priv; +}; + + +/** + * Type of transfer public keys used during refresh + * operations. + */ +struct TALER_TransferPublicKey +{ + /** + * Taler uses ECDSA for transfer keys. + * FIXME: should this not be ECDHE? + */ + struct GNUNET_CRYPTO_EcdsaPublicKey ecdsa_pub; +}; + + +/** + * Type of transfer public keys used during refresh + * operations. + */ +struct TALER_TransferPrivateKey +{ + /** + * Taler uses ECDSA for melting session keys. + * FIXME: should this not be ECDHE? + */ + struct GNUNET_CRYPTO_EcdsaPrivateKey ecdsa_priv; +}; + + +/** + * Type of online public keys used by the mint to sign + * messages. + */ +struct TALER_MintPublicKey +{ + /** + * Taler uses EdDSA for online mint message signing. + */ + struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub; +}; + + +/** + * Type of online public keys used by the mint to + * sign messages. + */ +struct TALER_MintPrivateKey +{ + /** + * Taler uses EdDSA for online signatures sessions. + */ + struct GNUNET_CRYPTO_EddsaPrivateKey eddsa_priv; +}; + + +/** + * Type of signatures used by the mint to sign messages online. + */ +struct TALER_MintSignature +{ + /** + * Taler uses EdDSA for online signatures sessions. + */ + struct GNUNET_CRYPTO_EddsaSignature eddsa_signature; +}; + + +/** + * Type of the offline master public key used by the mint. + */ +struct TALER_MasterPublicKey +{ + /** + * Taler uses EdDSA for the long-term offline master key. + */ + struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub; +}; + + +/** + * Type of the offline master public keys used by the mint. + */ +struct TALER_MasterPrivateKey +{ + /** + * Taler uses EdDSA for the long-term offline master key. + */ + struct GNUNET_CRYPTO_EddsaPrivateKey eddsa_priv; +}; + + +/** + * Type of signatures by the offline master public key used by the mint. + */ +struct TALER_MasterSignature +{ + /** + * Taler uses EdDSA for the long-term offline master key. + */ + struct GNUNET_CRYPTO_EddsaSignature eddsa_signature; +}; + + + +/** + * Type of public keys for Taler coins. + */ +struct TALER_CoinSpendPublicKey +{ + /** + * Taler uses ECDSA for coins. + */ + struct GNUNET_CRYPTO_EcdsaPublicKey ecdsa_pub; +}; + + +/** + * Type of private keys for Taler coins. + */ +struct TALER_CoinSpendPrivateKey +{ + /** + * Taler uses ECDSA for coins. + */ + struct GNUNET_CRYPTO_EcdsaPrivateKey ecdsa_priv; +}; + + +/** + * Type of signatures made with Taler coins. + */ +struct TALER_CoinSpendSignature +{ + /** + * Taler uses ECDSA for coins. + */ + struct GNUNET_CRYPTO_EcdsaSignature ecdsa_signature; +}; + + +GNUNET_NETWORK_STRUCT_END + + + +/** + * Type of blinding keys for Taler. + */ +struct TALER_DenominationBlindingKey +{ + /** + * Taler uses RSA for blinding. + */ + struct GNUNET_CRYPTO_rsa_BlindingKey *rsa_blinding_key; +}; + + +/** + * Type of (unblinded) coin signatures for Taler. + */ +struct TALER_DenominationSignature +{ + /** + * Taler uses RSA for blinding. + */ + struct GNUNET_CRYPTO_rsa_Signature *rsa_signature; +}; + + +/** + * Type of public signing keys for verifying blindly signed coins. + */ +struct TALER_DenominationPublicKey +{ + /** + * Taler uses RSA for signing coins. + */ + struct GNUNET_CRYPTO_rsa_PublicKey *rsa_public_key; +}; + + +/** + * Type of private signing keys for blind signing of coins. + */ +struct TALER_DenominationPrivateKey +{ + /** + * Taler uses RSA for signing coins. + */ + struct GNUNET_CRYPTO_rsa_PrivateKey *rsa_private_key; +}; + + /** * Public information about a coin (including the public key * of the coin, the denomination key and the signature with @@ -37,19 +294,19 @@ struct TALER_CoinPublicInfo /** * The coin's public key. */ - struct GNUNET_CRYPTO_EcdsaPublicKey coin_pub; + struct TALER_CoinSpendPublicKey coin_pub; /** * Public key representing the denomination of the coin * that is being deposited. */ - struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub; + struct TALER_DenominationPublicKey denom_pub; /** * (Unblinded) signature over @e coin_pub with @e denom_pub, * which demonstrates that the coin is valid. */ - struct GNUNET_CRYPTO_rsa_Signature *denom_sig; + struct TALER_DenominationSignature denom_sig; }; @@ -68,6 +325,9 @@ TALER_test_coin_valid (const struct TALER_CoinPublicInfo *coin_public_info); /* ****************** Refresh crypto primitives ************* */ + +GNUNET_NETWORK_STRUCT_BEGIN + /** * Secret used to decrypt the key to decrypt link secrets. */ @@ -107,45 +367,48 @@ struct TALER_EncryptedLinkSecret /** - * Representation of an encrypted refresh link. + * Representation of an refresh link in cleartext. */ -struct TALER_RefreshLinkEncrypted +struct TALER_RefreshLinkDecrypted { /** - * Encrypted blinding key with @e blinding_key_enc_size bytes, - * must be allocated at the end of this struct. - */ - const char *blinding_key_enc; - - /** - * Number of bytes in @e blinding_key_enc. + * Private key of the coin. */ - size_t blinding_key_enc_size; + struct TALER_CoinSpendPrivateKey coin_priv; /** - * Encrypted private key of the coin. + * Blinding key. */ - char coin_priv_enc[sizeof (struct GNUNET_CRYPTO_EcdsaPrivateKey)]; + struct TALER_DenominationBlindingKey blinding_key; }; +GNUNET_NETWORK_STRUCT_END + + /** - * Representation of an refresh link in cleartext. + * Representation of an encrypted refresh link. */ -struct TALER_RefreshLinkDecrypted +struct TALER_RefreshLinkEncrypted { /** - * Private key of the coin. + * Encrypted blinding key with @e blinding_key_enc_size bytes, + * must be allocated at the end of this struct. + */ + const char *blinding_key_enc; + + /** + * Number of bytes in @e blinding_key_enc. */ - struct GNUNET_CRYPTO_EcdsaPrivateKey coin_priv; + size_t blinding_key_enc_size; /** - * Blinding key with @e blinding_key_enc_size bytes. + * Encrypted private key of the coin. */ - struct GNUNET_CRYPTO_rsa_BlindingKey *blinding_key; + char coin_priv_enc[sizeof (struct TALER_CoinSpendPrivateKey)]; }; |