linux/include/crypto/algapi.h, branch v2.6.24

[CRYPTO] blkcipher: Added blkcipher_walk_virt_block

2007-10-10T23:55:48Z

This patch adds the helper blkcipher_walk_virt_block which is similar to blkcipher_walk_virt but uses a supplied block size instead of the block size of the block cipher. This is useful for CTR where the block size is 1 but we still want to walk by the block size of the underlying cipher. Signed-off-by: Herbert Xu

[CRYPTO] aead: Add authenc

2007-10-10T23:55:43Z

This patch adds the authenc algorithm which constructs an AEAD algorithm from an asynchronous block cipher and a hash. The construction is done by concatenating the encrypted result from the cipher with the output from the hash, as is used by the IPsec ESP protocol. The authenc algorithm exists as a template with four parameters: authenc(auth, authsize, enc, enckeylen). The authentication algorithm, the authentication size (i.e., truncating the output of the authentication algorithm), the encryption algorithm, and the encryption key length. Both the size field and the key length field are in bytes. For example, AES-128 with SHA1-HMAC would be represented by authenc(hmac(sha1), 12, cbc(aes), 16) The key for the authenc algorithm is the concatenation of the keys for the authentication algorithm with the encryption algorithm. For the above example, if a key of length 36 bytes is given, then hmac(sha1) would receive the first 20 bytes while the last 16 would be given to cbc(aes). Signed-off-by: Herbert Xu

[CRYPTO] ablkcipher: Remove queue pointer from common alg object

2007-10-10T23:55:41Z

Since not everyone needs a queue pointer and those who need it can always get it from the context anyway the queue pointer in the common alg object is redundant. Signed-off-by: Herbert Xu

[CRYPTO] api: Add aead crypto type

2007-10-10T23:55:39Z

This patch adds crypto_aead which is the interface for AEAD (Authenticated Encryption with Associated Data) algorithms. AEAD algorithms perform authentication and encryption in one step. Traditionally users (such as IPsec) would use two different crypto algorithms to perform these. With AEAD this comes down to one algorithm and one operation. Of course if traditional algorithms were used we'd still be doing two operations underneath. However, real AEAD algorithms may allow the underlying operations to be optimised as well. Signed-off-by: Herbert Xu

[CRYPTO] api: Add crypto_ablkcipher_ctx_aligned

2007-10-10T23:55:37Z

This is function does the same thing for ablkcipher that is done for blkcipher by crypto_blkcipher_ctx_aligned(): it returns an aligned address of the private ctx. Signed-off-by: Sebastian Siewior Signed-off-by: Herbert Xu

[CRYPTO] cryptd: Add software async crypto daemon

2007-05-02T04:38:32Z

This patch adds the cryptd module which is a template that takes a synchronous software crypto algorithm and converts it to an asynchronous one by executing it in a kernel thread. Signed-off-by: Herbert Xu

[CRYPTO] api: Do not remove users unless new algorithm matches

2007-05-02T04:38:32Z

As it is whenever a new algorithm with the same name is registered users of the old algorithm will be removed so that they can take advantage of the new algorithm. This presents a problem when the new algorithm is not equivalent to the old algorithm. In particular, the new algorithm might only function on top of the existing one. Hence we should not remove users unless they can make use of the new algorithm. Signed-off-by: Herbert Xu

[CRYPTO] api: Add async blkcipher type

2007-05-02T04:38:31Z

This patch adds the mid-level interface for asynchronous block ciphers. It also includes a generic queueing mechanism that can be used by other asynchronous crypto operations in future. Signed-off-by: Herbert Xu

[CRYPTO] templates: Pass type/mask when creating instances

2007-05-02T04:38:31Z

This patch passes the type/mask along when constructing instances of templates. This is in preparation for templates that may support multiple types of instances depending on what is requested. For example, the planned software async crypto driver will use this construct. For the moment this allows us to check whether the instance constructed is of the correct type and avoid returning success if the type does not match. Signed-off-by: Herbert Xu

[CRYPTO] api: Allow multiple frontends per backend

2007-02-06T22:21:01Z

This patch adds support for multiple frontend types for each backend algorithm by passing the type and mask through to the backend type init function. Signed-off-by: Herbert Xu