How to decrypt AES in CTR mode and AES in CBC mode?

Question

Encryption

Good evening. Tell me how to decrypt AES in CTR mode and AES in CBC mode? How does this process generally take place? What is needed for this?
I have keys and ciphertext.

Answer 1

OpenSSL: AES_set_decrypt_key + AES_cbc_encrypt. For CTR mode, there is AES_ctr128_encrypt, but not the fact that it will work, there may be problems with CTR.