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Diffstat (limited to 'docs/common/lib_crypto.txt')
| -rw-r--r-- | docs/common/lib_crypto.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/docs/common/lib_crypto.txt b/docs/common/lib_crypto.txt new file mode 100644 index 00000000..9ddafe69 --- /dev/null +++ b/docs/common/lib_crypto.txt @@ -0,0 +1,28 @@ +TITLE lib/crypto + +Provides cryptographic primatives using the OpenSSL implementation. + + +SUBTITLE CipherContexts and CipherDescriptions + +A CipherContext is the interface to encryption and decryption, providing a generic interface. + +It is constructed with a decrypt or encrypt flag, and a CipherDescription. The CipherDescription specifies which cipher is to be used, the key, and all other cipher specific paramteres. + +The CipherContext has support for padding and initialisation vectors. + + +SUBTITLE Random numbers + +An interface to the OpenSSL psuedo random number generater is provided. + + +SUBTITLE Digests + +An interface to the MD5 digest is provided. + + +SUBTITLE RollingChecksum + +The rsync rolling checksum is implemented. The interface is a little tricky to be efficient as the caller must track the position and provide relevant bytes to advance the checksum. + |