[openssl-users] How is the AES CTR encryption working in openssl EVP api

ajay saxena aileronajay at gmail.com
Fri Nov 10 05:48:44 UTC 2017


I am trying to use AES CTR encryption to encrypt/decrypt data using EVP
API. The earlier API, AES_ctr128_encrypt does explicitly use a counter. How
is the counter handled in the EVP implmentation.

I followed this documentation here, https://wiki.openssl.

and replaced the cbc with ctr function. Can someone please help me
understand the usage of AES CTR encryption using EVP api.

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