Re: EVP_Encrypt/EVP_Decrypt input/output buffers requirements

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Hello Matt,

Thank you very much.

Patrice.

Matt Caswell a écrit :

On 30/01/2019 09:45, Patrice Guérin wrote:
Hello to all,

Documentation does not provide input/output buffers requirements for
encryption/decryption, so
is it safe to submit the same buffer (ie, input=output) for these operations ?
If not, what is the minimum distance 'd' required (input = output+d) ?
This is to be used in small memory environment.
EVP_Encrypt*/EVP_Decrypt* support in-place encryption/decryption, i.e. where in
== out. They don't support "partially" overlapping buffers, i.e. where "in !=
out" but some portions of the buffer still overlap.

Matt


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