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[...] the only one that is listed (secp256k1) are marked as unsafe. Some of the others are there too. NIST P-224 is the same curve as secp224r1, and similarly for P-256 and P-384. Those are marked unsafe as well. Assuming we trust djb, are the elliptic curves that are currently supported by this reasonably new version of OpenSSL (and therefore ...


ECB is not secure even with per file keys, because if two blocks of the file are identical, this is visible in the ciphertext. The only * cases where ECB is secure is encrypting completely random data or encrypting a single block per key. You should pick something more secure if your can help it. If there is literally no other option than RC4 and AES ECB, ...

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