diff options
Diffstat (limited to 'frozen_deps/Cryptodome/Cipher/_pkcs1_oaep_decode.py')
| -rw-r--r-- | frozen_deps/Cryptodome/Cipher/_pkcs1_oaep_decode.py | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/frozen_deps/Cryptodome/Cipher/_pkcs1_oaep_decode.py b/frozen_deps/Cryptodome/Cipher/_pkcs1_oaep_decode.py new file mode 100644 index 0000000..82bdaa7 --- /dev/null +++ b/frozen_deps/Cryptodome/Cipher/_pkcs1_oaep_decode.py @@ -0,0 +1,41 @@ +from Cryptodome.Util._raw_api import (load_pycryptodome_raw_lib, c_size_t, + c_uint8_ptr) + + +_raw_pkcs1_decode = load_pycryptodome_raw_lib("Cryptodome.Cipher._pkcs1_decode", + """ + int pkcs1_decode(const uint8_t *em, size_t len_em, + const uint8_t *sentinel, size_t len_sentinel, + size_t expected_pt_len, + uint8_t *output); + + int oaep_decode(const uint8_t *em, + size_t em_len, + const uint8_t *lHash, + size_t hLen, + const uint8_t *db, + size_t db_len); + """) + + +def pkcs1_decode(em, sentinel, expected_pt_len, output): + if len(em) != len(output): + raise ValueError("Incorrect output length") + + ret = _raw_pkcs1_decode.pkcs1_decode(c_uint8_ptr(em), + c_size_t(len(em)), + c_uint8_ptr(sentinel), + c_size_t(len(sentinel)), + c_size_t(expected_pt_len), + c_uint8_ptr(output)) + return ret + + +def oaep_decode(em, lHash, db): + ret = _raw_pkcs1_decode.oaep_decode(c_uint8_ptr(em), + c_size_t(len(em)), + c_uint8_ptr(lHash), + c_size_t(len(lHash)), + c_uint8_ptr(db), + c_size_t(len(db))) + return ret |