-#ifndef HEADER_ENVELOPE_H
-
-#define EVP_ENCODE_CTX_SIZE 96
-#define EVP_MD_SIZE 60
-#define EVP_MD_CTX_SIZE 152
-#define EVP_CIPHER_SIZE 40
-#define EVP_CIPHER_CTX_SIZE 4212
-#define EVP_MAX_MD_SIZE 20
-
-typedef struct evp_encode_ctx_st
- {
- char data[EVP_ENCODE_CTX_SIZE];
- } EVP_ENCODE_CTX;
-
-typedef struct env_md_ctx_st
- {
- char data[EVP_MD_CTX_SIZE];
- } EVP_MD_CTX;
-
-typedef struct evp_cipher_st
- {
- char data[EVP_CIPHER_SIZE];
- } EVP_CIPHER;
-
-typedef struct evp_cipher_ctx_st
- {
- char data[EVP_CIPHER_CTX_SIZE];
- } EVP_CIPHER_CTX;
-#endif
-