diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/compat/sodium/sodium_aead.cpp')
| -rw-r--r-- | comm/third_party/botan/src/lib/compat/sodium/sodium_aead.cpp | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/compat/sodium/sodium_aead.cpp b/comm/third_party/botan/src/lib/compat/sodium/sodium_aead.cpp new file mode 100644 index 0000000000..0d6f35eaf7 --- /dev/null +++ b/comm/third_party/botan/src/lib/compat/sodium/sodium_aead.cpp @@ -0,0 +1,359 @@ +/* +* (C) 2019 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/sodium.h> +#include <botan/aead.h> + +namespace Botan { + +namespace { + +int sodium_aead_chacha20poly1305_encrypt(uint8_t ctext[], + unsigned long long* ctext_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + size_t nonce_len, + const uint8_t key[]) + { + auto chacha20poly1305 = AEAD_Mode::create_or_throw("ChaCha20Poly1305", ENCRYPTION); + + chacha20poly1305->set_key(key, 32); + chacha20poly1305->set_associated_data(ad, ad_len); + chacha20poly1305->start(nonce, nonce_len); + + // FIXME do this in-place + secure_vector<uint8_t> buf; + buf.reserve(ptext_len + 16); + buf.assign(ptext, ptext + ptext_len); + + chacha20poly1305->finish(buf); + + copy_mem(ctext, buf.data(), buf.size()); + if(ctext_len) + *ctext_len = buf.size(); + return 0; + } + +int sodium_aead_chacha20poly1305_decrypt(uint8_t ptext[], + unsigned long long* ptext_len, + const uint8_t ctext[], + size_t ctext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + size_t nonce_len, + const uint8_t key[]) + { + if(ctext_len < 16) + return -1; + + *ptext_len = 0; + + auto chacha20poly1305 = AEAD_Mode::create_or_throw("ChaCha20Poly1305", DECRYPTION); + + chacha20poly1305->set_key(key, 32); + chacha20poly1305->set_associated_data(ad, ad_len); + chacha20poly1305->start(nonce, nonce_len); + + // FIXME do this in-place + secure_vector<uint8_t> buf; + buf.assign(ctext, ctext + ctext_len); + + try + { + chacha20poly1305->finish(buf); + } + catch(Invalid_Authentication_Tag&) + { + return -1; + } + + *ptext_len = ctext_len - 16; + + copy_mem(ptext, buf.data(), buf.size()); + return 0; + } + +int sodium_aead_chacha20poly1305_encrypt_detached(uint8_t ctext[], + uint8_t mac[], + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + size_t nonce_len, + const uint8_t key[]) + { + auto chacha20poly1305 = AEAD_Mode::create_or_throw("ChaCha20Poly1305", ENCRYPTION); + + chacha20poly1305->set_key(key, 32); + chacha20poly1305->set_associated_data(ad, ad_len); + chacha20poly1305->start(nonce, nonce_len); + + // FIXME do this in-place + secure_vector<uint8_t> buf; + buf.reserve(ptext_len + 16); + buf.assign(ptext, ptext + ptext_len); + + chacha20poly1305->finish(buf); + + copy_mem(ctext, buf.data(), ptext_len); + copy_mem(mac, buf.data() + ptext_len, 16); + return 0; + } + +int sodium_aead_chacha20poly1305_decrypt_detached(uint8_t ptext[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t mac[], + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + size_t nonce_len, + const uint8_t key[]) + { + auto chacha20poly1305 = AEAD_Mode::create_or_throw("ChaCha20Poly1305", DECRYPTION); + + chacha20poly1305->set_key(key, 32); + chacha20poly1305->set_associated_data(ad, ad_len); + chacha20poly1305->start(nonce, nonce_len); + + // FIXME do this in-place + secure_vector<uint8_t> buf; + buf.reserve(ctext_len + 16); + buf.assign(ctext, ctext + ctext_len); + buf.insert(buf.end(), mac, mac + 16); + + try + { + chacha20poly1305->finish(buf); + } + catch(Invalid_Authentication_Tag&) + { + return -1; + } + + copy_mem(ptext, buf.data(), buf.size()); + return 0; + } + +} + +int Sodium::crypto_aead_chacha20poly1305_ietf_encrypt(uint8_t ctext[], + unsigned long long* ctext_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_encrypt( + ctext, ctext_len, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_ietf_decrypt(uint8_t ptext[], + unsigned long long* ptext_len, + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_decrypt( + ptext, ptext_len, ctext, ctext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_ietf_encrypt_detached(uint8_t ctext[], + uint8_t mac[], + unsigned long long* mac_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + if(mac_len) + *mac_len = 16; + + return sodium_aead_chacha20poly1305_encrypt_detached( + ctext, mac, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_ietf_decrypt_detached(uint8_t ptext[], + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t mac[], + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_decrypt_detached( + ptext, ctext, ctext_len, mac, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_encrypt(uint8_t ctext[], + unsigned long long* ctext_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + return sodium_aead_chacha20poly1305_encrypt( + ctext, ctext_len, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_decrypt(uint8_t ptext[], + unsigned long long* ptext_len, + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + return sodium_aead_chacha20poly1305_decrypt( + ptext, ptext_len, ctext, ctext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_encrypt_detached(uint8_t ctext[], + uint8_t mac[], + unsigned long long* mac_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + if(mac_len) + *mac_len = 16; + + return sodium_aead_chacha20poly1305_encrypt_detached( + ctext, mac, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_npubbytes(), key); + } + +int Sodium::crypto_aead_chacha20poly1305_decrypt_detached(uint8_t ptext[], + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t mac[], + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_decrypt_detached( + ptext, ctext, ctext_len, mac, + ad, ad_len, nonce, crypto_aead_chacha20poly1305_npubbytes(), key); + } + +int Sodium::crypto_aead_xchacha20poly1305_ietf_encrypt(uint8_t ctext[], + unsigned long long* ctext_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_encrypt( + ctext, ctext_len, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_xchacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_xchacha20poly1305_ietf_decrypt(uint8_t ptext[], + unsigned long long* ptext_len, + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + + return sodium_aead_chacha20poly1305_decrypt( + ptext, ptext_len, ctext, ctext_len, + ad, ad_len, nonce, crypto_aead_xchacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_xchacha20poly1305_ietf_encrypt_detached(uint8_t ctext[], + uint8_t mac[], + unsigned long long* mac_len, + const uint8_t ptext[], + size_t ptext_len, + const uint8_t ad[], + size_t ad_len, + const uint8_t unused_secret_nonce[], + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + if(mac_len) + *mac_len = 16; + + return sodium_aead_chacha20poly1305_encrypt_detached( + ctext, mac, ptext, ptext_len, + ad, ad_len, nonce, crypto_aead_xchacha20poly1305_ietf_npubbytes(), key); + } + +int Sodium::crypto_aead_xchacha20poly1305_ietf_decrypt_detached(uint8_t ptext[], + uint8_t unused_secret_nonce[], + const uint8_t ctext[], + size_t ctext_len, + const uint8_t mac[], + const uint8_t ad[], + size_t ad_len, + const uint8_t nonce[], + const uint8_t key[]) + { + BOTAN_UNUSED(unused_secret_nonce); + return sodium_aead_chacha20poly1305_decrypt_detached( + ptext, ctext, ctext_len, mac, + ad, ad_len, nonce, crypto_aead_xchacha20poly1305_ietf_npubbytes(), key); + } + +} |