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-rw-r--r--src/lib/modes/aead/chacha20poly1305/chacha20poly1305.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/modes/aead/chacha20poly1305/chacha20poly1305.h b/src/lib/modes/aead/chacha20poly1305/chacha20poly1305.h
index f58bd48ac..58328ac5b 100644
--- a/src/lib/modes/aead/chacha20poly1305/chacha20poly1305.h
+++ b/src/lib/modes/aead/chacha20poly1305/chacha20poly1305.h
@@ -83,7 +83,7 @@ class BOTAN_DLL ChaCha20Poly1305_Decryption final : public ChaCha20Poly1305_Mode
public:
size_t output_length(size_t input_length) const override
{
- BOTAN_ASSERT(input_length > tag_size(), "Sufficient input");
+ BOTAN_ASSERT(input_length >= tag_size(), "Sufficient input");
return input_length - tag_size();
}