diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/taler_util.h | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/src/include/taler_util.h b/src/include/taler_util.h index db6f22e68..19e6bacf1 100644 --- a/src/include/taler_util.h +++ b/src/include/taler_util.h @@ -241,6 +241,30 @@ TALER_data_to_string_alloc (const void *buf, /* ****************** Refresh crypto primitives ************* */ /** + * Secret used to decrypt refresh links. + */ +struct TALER_LinkSecret +{ + /** + * Secret used to decrypt the refresh link data. + */ + char key[sizeof (struct GNUNET_HashCode)]; +}; + + +/** + * Encrypted secret used to decrypt refresh links. + */ +struct TALER_EncryptedLinkSecret +{ + /** + * Encrypted secret, must be the given size! + */ + char enc[sizeof (struct TALER_LinkSecret)]; +}; + + +/** * Representation of an encrypted refresh link. */ struct TALER_RefreshLinkEncrypted @@ -295,9 +319,24 @@ struct TALER_RefreshLinkDecrypted * @return #GNUNET_OK on success */ int -TALER_transfer_decrypt (const struct GNUNET_HashCode *secret_enc, +TALER_transfer_decrypt (const struct TALER_EncryptedLinkSecret *secret_enc, + const struct GNUNET_HashCode *trans_sec, + struct TALER_LinkSecret *secret); + + +/** + * Use the @a trans_sec (from ECDHE) to encrypt the @a secret + * to obtain the @a secret_enc. + * + * @param secret shared secret for refresh link decryption + * @param trans_sec transfer secret (FIXME: use different type?) + * @param secret_enc[out] encrypted secret + * @return #GNUNET_OK on success + */ +int +TALER_transfer_encrypt (const struct TALER_LinkSecret *secret, const struct GNUNET_HashCode *trans_sec, - struct GNUNET_HashCode *secret); + struct TALER_EncryptedLinkSecret *secret_enc); /** @@ -309,7 +348,7 @@ TALER_transfer_decrypt (const struct GNUNET_HashCode *secret_enc, */ struct TALER_RefreshLinkDecrypted * TALER_refresh_decrypt (const struct TALER_RefreshLinkEncrypted *input, - const struct GNUNET_HashCode *secret); + const struct TALER_LinkSecret *secret); /** @@ -321,7 +360,7 @@ TALER_refresh_decrypt (const struct TALER_RefreshLinkEncrypted *input, */ struct TALER_RefreshLinkEncrypted * TALER_refresh_encrypt (const struct TALER_RefreshLinkDecrypted *input, - const struct GNUNET_HashCode *secret); + const struct TALER_LinkSecret *secret); #endif |