Do I have provide AES key + IV for someone to be able to decrypt encrypted data?
Does that increase key length from 128 bit to 256 bits?
Do I have provide AES key + IV for someone to be able to
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Do I have provide AES key + IV for someone to be able to decrypt encrypted data?
Does that increase key length from 128 bit to 256 bits?
Yes, both the key and the IV are needed to decrypt something. Generally, the key should be exchanged using a secure channel or key exchange mechanism. The IV can be transmitted along with the encrypted data in plain text. An IV should ideally be used only once. The main motivation behind using a changing IV is that encrypting the same thing twice should not result in the same ciphertext both times, because this can allow an attacker to draw conclusions about the data encrypted.