Pilot: ALTLinux & CryptoAPI

CryptoAPI cipher compatibility table
cipher/kernel (keybits)		ECB (electronic codebook)	CBC (cipher block chaining)	CFB (cipher feedback)	OFB (output feedback)	CTR (counter)	RTC (modified counter)
3DES	2.4.20-alt11-smp (64, 128, 192)	+	+ (info)	+	-	-	-
	2.4.22-std-smp-alt15 (64, 128, 192)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (64, 128, 192)	+	+	+	-	+	+
AES	2.4.20-alt11-smp (128, 192, 256)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
Blowfish	2.4.20-alt11-smp (128, 160, 192, 256)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (128, 160, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 160, 192, 256)	+	+	+	-	+	+
cipher/kernel (keybits)		ECB (electronic codebook)	CBC (cipher block chaining)	CFB (cipher feedback)	OFB (output feedback)	CTR (counter)	RTC (modified counter)
CAST5 (CAST-128)	2.4.20-alt11-smp (40, 80)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (40, 80, 128)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (40, 80, 128)	+	+	+	-	+	+
DES (NIST FIPS-81: DES modes of operation)	2.4.20-alt11-smp (64)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (64)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (64)	+	+	+	-	+	+
DFC	2.4.20-alt11-smp (128, 192, 256)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
cipher/kernel (keybits)		ECB (electronic codebook)	CBC (cipher block chaining)	CFB (cipher feedback)	OFB (output feedback)	CTR (counter)	RTC (modified counter)
GOST	2.4.20-alt11-smp	-	-	-	-	-	-
	2.4.22-std-smp-alt15 (256)	-	-	-	-	-	-
	2.4.26-std-up-alt6 (256)	-	-	-	-	-	-
IDEA	2.4.20-alt11-smp (128)	-	-	-	-	-	-
	2.4.22-std-smp-alt15 (128)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128)	+	+	+	-	+	+
MARS	2.4.20-alt11-smp (128, 192, 256)	-	-	-	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
cipher/kernel (keybits)		ECB (electronic codebook)	CBC (cipher block chaining)	CFB (cipher feedback)	OFB (output feedback)	CTR (counter)	RTC (modified counter)
NUSH	2.4.20-alt11-smp	+	+	+	-	-	-
	2.4.22-std-smp-alt15	+	+	+	-	+	+
	2.4.26-std-up-alt6	+	+	+	-	+	+
RC5	2.4.20-alt11-smp	+	+	-	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
RC6	2.4.20-alt11-smp (128, 192, 256)	-	-	-	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
cipher/kernel (keybits)		ECB (electronic codebook)	CBC (cipher block chaining)	CFB (cipher feedback)	OFB (output feedback)	CTR (counter)	RTC (modified counter)
Serpent	2.4.20-alt11-smp (128, 192, 256)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
Twofish	2.4.20-alt11-smp (128, 192, 256)	+	+	+	-	-	-
	2.4.22-std-smp-alt15 (128, 192, 256)	+	+	+	-	+	+
	2.4.26-std-up-alt6 (128, 192, 256)	+	+	+	-	+	+
Wicker	2.4.20-alt11-smp	+	+	-	-	-	-
	2.4.22-std-smp-alt15	+	+	+	-	+	+
	2.4.26-std-up-alt6	+	+	+	-	+	+

CryptoAPI digest compatibility table
digest (bits)/kernel	2.4.20-alt11-smp	2.4.22-std-smp-alt15	2.4.26-std-up-alt6
MD5 (128)	+	+	+
RIPEMD160 (160?)	-	+	+
SHA1 (160)	+	+	+
SHA256 (256?)	-	+	+
SHA384 (384?)	-	+	+
SHA512 (512?)	-	+	+

Operation modes

ECB (electronic codebook) mode simply encrypts each 64-bit block of plaintext one after another under the same 56-bit DES key.
In CBC (cipher block chaining) mode, each 64-bit plaintext block is XORed with the previous ciphertext block before being encrypted with the DES key. Thus the encryption of each block depends on previous blocks and the same 64-bit plaintext block can encrypt to different ciphertext depending on its context in the overall message. CBC mode helps protect against certain attacks, but not against exhaustive search or differential cryptoanalysis.
CFB (cipher feedback) mode allows one to use DES with block lengths less than 64 bits.

Operation modes

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