Cryptoki: a cryptographic Token Interface

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v201-95
pkcs11-base-v2.40-cos01

Function	Key type	Input length	Output length
Comments
C_Encrypt	SKIPJACK	multiple of 8	same as input length	no final part
C_Decrypt	SKIPJACK	multiple of 8	same as input length	no final part

11.21.5. SKIPJACK-CFB64

SKIPJACK-CFB64, denoted CKM_SKIPJACK_CFB64, is a mechanism for single- and multiple-part encryption and decryption with SKIPJACK in 64-bit cipher feedback mode as defined in FIPS PUB 185.
It has a parameter, a 24-byte initialization vector. During an encryption operation, this IV is set to some value generated by the token—in other words, the application cannot specify a particular IV when encrypting. It can, of course, specify a particular IV when decrypting.
Constraints on key types and the length of data are summarized in the following table:
Table 77, SKIPJACK-CFB64: Data and Length

Function	Key type	Input length	Output length	Comments
C_Encrypt	SKIPJACK	multiple of 8	same as input length	no final part
C_Decrypt	SKIPJACK	multiple of 8	same as input length	no final part

11.21.6. SKIPJACK-CFB32

SKIPJACK-CFB32, denoted CKM_SKIPJACK_CFB32, is a mechanism for single- and multiple-part encryption and decryption with SKIPJACK in 32-bit cipher feedback mode as defined in FIPS PUB 185.
It has a parameter, a 24-byte initialization vector. During an encryption operation, this IV is set to some value generated by the token—in other words, the application cannot specify a particular IV when encrypting. It can, of course, specify a particular IV when decrypting.
Constraints on key types and the length of data are summarized in the following table:
Table 78, SKIPJACK-CFB32: Data and Length

Function	Key type	Input length	Output length	Comments
C_Encrypt	SKIPJACK	multiple of 4	same as input length	no final part
C_Decrypt	SKIPJACK	multiple of 4	same as input length	no final part

11.21.7. SKIPJACK-CFB16

SKIPJACK-CFB16, denoted CKM_SKIPJACK_CFB16, is a mechanism for single- and multiple-part encryption and decryption with SKIPJACK in 16-bit cipher feedback mode as defined in FIPS PUB 185.
It has a parameter, a 24-byte initialization vector. During an encryption operation, this IV is set to some value generated by the token—in other words, the application cannot specify a particular IV when encrypting. It can, of course, specify a particular IV when decrypting.
Constraints on key types and the length of data are summarized in the following table:
Table 79, SKIPJACK-CFB16: Data and Length

Function	Key type	Input length	Output length	Comments
C_Encrypt	SKIPJACK	multiple of 4	same as input length	no final part
C_Decrypt	SKIPJACK	multiple of 4	same as input length	no final part

11.21.8. SKIPJACK-CFB8

SKIPJACK-CFB8, denoted CKM_SKIPJACK_CFB8, is a mechanism for single- and multiple-part encryption and decryption with SKIPJACK in 8-bit cipher feedback mode as defined in FIPS PUB 185.
It has a parameter, a 24-byte initialization vector. During an encryption operation, this IV is set to some value generated by the token—in other words, the application cannot specify a particular IV when encrypting. It can, of course, specify a particular IV when decrypting.
Constraints on key types and the length of data are summarized in the following table:
Table 80, SKIPJACK-CFB8: Data and Length

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