chore: checkpoint before Python removal

vendor/aws-lc-sys/aws-lc/crypto/dsa/internal.h

@@ -0,0 +1,44 @@
+// Copyright (c) 2020, Google Inc.
+// SPDX-License-Identifier: ISC
+
+#ifndef OPENSSL_HEADER_DSA_INTERNAL_H
+#define OPENSSL_HEADER_DSA_INTERNAL_H
+
+#include <openssl/dsa.h>
+
+#include <openssl/thread.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+struct dsa_st {
+  BIGNUM *p;
+  BIGNUM *q;
+  BIGNUM *g;
+
+  BIGNUM *pub_key;
+  BIGNUM *priv_key;
+
+  // Normally used to cache montgomery values
+  CRYPTO_MUTEX method_mont_lock;
+  BN_MONT_CTX *method_mont_p;
+  BN_MONT_CTX *method_mont_q;
+  CRYPTO_refcount_t references;
+  CRYPTO_EX_DATA ex_data;
+};
+
+// dsa_check_key performs cheap self-checks on |dsa|, and ensures it is within
+// DoS bounds. It returns one on success and zero on error.
+int dsa_check_key(const DSA *dsa);
+
+int dsa_internal_paramgen(DSA *dsa, size_t bits, const EVP_MD *evpmd,
+                          const unsigned char *seed_in, size_t seed_len,
+                          int *out_counter, unsigned long *out_h, BN_GENCB *cb);
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#endif  // OPENSSL_HEADER_DSA_INTERNAL_H