crypto_blkcipher_decrypt
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Name

crypto_blkcipher_decrypt — decrypt ciphertext

Synopsis

int crypto_blkcipher_decrypt (struct blkcipher_desc * desc,
 struct scatterlist * dst,
 struct scatterlist * src,
 unsigned int nbytes);
 

Arguments

desc

reference to the block cipher handle with meta data

dst

scatter/gather list that is filled by the cipher operation with the plaintext

src

scatter/gather list that holds the ciphertext

nbytes

number of bytes of the ciphertext to decrypt.

Description

Decrypt ciphertext data using the IV set by the caller with a preceding call of crypto_blkcipher_set_iv.

The blkcipher_desc data structure must be filled by the caller as documented for the crypto_blkcipher_encrypt call above.

Return

0 if the cipher operation was successful; < 0 if an error occurred

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