Bhupendra K Joshi writes:
The problem is when I give say 10 bytes of data to AES_cbc_encrypt(with AES_ENCRYPT), I get 16 bytes of encrypted data and when I pass the same 16 bytes of encrypted data to AES_cbc_encrypt(with AES_DECRYPT) I get 16 bytes of decrypted data.
How can I determine the actual data decryption length.
You have to encode the length into the data you encrypt, and after
decryption, you have to use that encoded length to determine the length of
the decrypted plain text.
It might be easier for you to use the EVP API. It will add som padding
which also contains length information, so you will get decryped plain text
with the length you expect.
Cheers,
Richard
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