Initialization vector in AES-CBC does not work.

[ericg]

How to load initialization vector properly in CAAM when using AES-CBC? The following code always produce same cipher text with random IV.

append_load(desc, iv_dma, 16, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB); // 0x12200010

Below is my full command sequence. Am I missing something here? Thanks.

Encrypt	Decrypt
0 -> 0xb080000b 1 -> 0x12200010 2 -> 0x7f0a6808 3 -> 0x02400020 4 -> 0x8941fdb0 5 -> 0x8210010d 6 -> 0x22120100 7 -> 0x892ef000 8 -> 0x60700000 9 -> 0x892ef100 10 -> 0x00000100	0 -> 0xb080000b      1 -> 0x12200010      2 -> 0x7f0a6818      3 -> 0x02400020      4 -> 0x8941fdd0      5 -> 0x8210010c      6 -> 0x22120100      7 -> 0x892ef100      8 -> 0x60700000      9 -> 0x892ef200      10 -> 0x00000100

[Yuri]

Hello,

  Sorry, but the information you are requesting is treated as confidential info at this time and requires a signed NDA (Non-Disclosure Agreement). Naturally, we cannot discuss this with you in public anyway, this requires to be handled
as a Service Request (SR).

How to submit a new question for NXP Support

Have a great day,
Yuri

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