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path: root/lib/crypto/c_src/crypto.c
AgeCommit message (Collapse)Author
2011-09-21Revert "Support 'md2' hash in crypto:rsa_sign/3 and crypto:rsa_verify/4"Sverker Eriksson
This reverts commit 82897cc8f399fab832148711b586215c9a3f7af1.
2011-09-06Support 'md2' hash in crypto:rsa_sign/3 and crypto:rsa_verify/4Christian von Roques
2011-05-18Add true streaming AES (CTR) encryption and streaming HMAC operationsTravis Jensen
The current crypto module implementations require all of the data being encrypted or authenticated to be in memory at one time. When trying to encrypt or authenticate a large file (on order of GBs), this is problematic. The implementation of AES CTR uses the same underlying implementation as aes_ctr_[en|de]crypt, but hands the state back to the client after every operation. The HMAC implementation differs from the previous implementations of sha_mac and md5_mac. The old implementations did not utilize the OpenSSL HMAC implementation. In order to ensure that I didn't implement something incorrectly, I chose to use the OpenSSL HMAC implementation directly, since it handles streaming as well. This has the added side benefit of allowing other hash functions to be used as desired (for instances, I added support for ripemd160 hashing). While I haven't done this, it seems like the existing md5_mac and sha_mac functions could either be depricated or redefined in terms of the new hmac_ functions. Update AES CTR and HMAC streaming with code review input Ensure that memcpy operations in hmac operations are being size checked properly. Rename aes_ctr_XXX_with_state to aes_ctr_stream_XXX. Remove redundant hmac_init_[sha|md5|ripemd160] functions. Fix documentation for hmac_final_n. Fix possible error using negative value as a marker on an unsigned int Now, use a separate marker and add a unit test to test specifically for a case where HashLen is larger than the underlying resultant hash. Revert "Fix possible error using negative value as a marker on an unsigned int" This reverts commit 59cb177aa96444c0fd3ace6d01f7b8a70dd69cc9. Resolve buffer overflow posibility on an unsigned int. Change handling the marker for HashLen to use the fact that a second parameter that has to be the the HashLen was passed. Also, ensure that HashLen parameter is positive.
2011-04-19Renamed the function strong_rand_uniform to strong_rand_mpint.Niclas Eklund
Added some checks in crypto.erl and crypto.c. Changed ssh_bits to use strong_rand_mpint.
2011-04-15Adds NIFs for cryptographically strong random number generation.Niclas Eklund
Also adds documentation and unit tests. Thanks to Geoff Cant.
2011-03-11Update copyright yearsBjörn-Egil Dahlberg
2011-02-28Make crypto.c work with valgrind 3.6 and correct cerl.srcPatrik Nyblom
2010-11-17crypto CTR supportSverker Eriksson
2010-09-03Fix memory leaks in cryptoRickard Green
2010-09-02Fix valgrind buildRickard Green
2010-08-20Fix RC4 stream cipher binding (crypto:rc4_encrypt_with_state/2)Paul Guyot
2010-06-09OTP-8700 crypto:dss_sign and dss_verify with pre-hashed digest.Sverker Eriksson
New variants of crypto:dss_sign and crypto:dss_verify with an extra argument to control how the digest is calculated.
2010-06-03OTP-8555 Send message from NIFSverker Eriksson
New NIF features: Send messages from a NIF, or from thread created by NIF, to any local process (enif_send) Store terms between NIF calls (enif_alloc_env, enif_make_copy) Create binary terms with user defined memory management (enif_make_resource_binary)
2010-04-28OTP-8333 Crypto using NIF'sSverker Eriksson
crypto application changed to use NIFs instead of driver.