---
name: "kcapi_aead_inbuflen_dec"
section: "3"
platform: "linux"
package: "libkcapi-dev"
version: "1.4.0-1+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/kcapi_aead_inbuflen_dec"
---

# kcapi\_aead\_inbuflen\_dec(3)

return minimum decryption input buffer length

## NAME

kcapi\_aead\_inbuflen\_dec - return minimum decryption input buffer length

## SYNOPSIS

**size\_t kcapi\_aead\_inbuflen\_dec(struct kcapi\_handle \*** *handle***, size\_t** *inlen***, size\_t** *assoclen***, size\_t** *taglen***);**

## ARGUMENTS

*handle*

\[in\] cipher handle

*inlen*

\[in\] size of ciphertext

*assoclen*

\[in\] size of associated data (AD)

*taglen*

\[in\] size of authentication tag

## DESCRIPTION

*return* minimum size of output data length in bytes

## AUTHOR

**Stephan Mueller** \<smueller@chronox.de\>

Author.

## COPYRIGHT