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