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Using streamed data with ChaCha20Poly1305 #561

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pfzetto opened this issue Oct 28, 2023 · 2 comments
Closed

Using streamed data with ChaCha20Poly1305 #561

pfzetto opened this issue Oct 28, 2023 · 2 comments

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@pfzetto
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pfzetto commented Oct 28, 2023 •
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Hello,
I want to encrypt a stream using ChaCha20Poly1305.
chacha20 does supply the apply_keystream function to encrypt streamed data.
I can't find a alternative to that using ChaCha20Poly1305.
As far as I can tell you have to supply the whole plain-/ciphertext loaded in memory.

How could I encrypt data that is larger that the available memory in my machine?

Am I missing something?

Cheers,
Paul
@newpavlov
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Right now it's not possible without manually using the underlying primitives. See RustCrypto/traits#1364 for more information.

@pfzetto
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pfzetto commented Oct 28, 2023

Thanks

@pfzetto pfzetto closed this as completed Oct 28, 2023
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