doc/imx/habv4/csf_examples/mx6_mx7/csf_u-boot_enc.txt

[Header]
    Version = 4.2
    Hash Algorithm = sha256
    Engine Configuration = 0
    Certificate Format = X509
    Signature Format = CMS
    Engine = CAAM

[Install SRK]
    # Index of the key location in the SRK table to be installed
    File = "../crts/SRK_1_2_3_4_table.bin"
    Source index = 0

[Install CSFK]
    # Key used to authenticate the CSF data
    File = "../crts/CSF1_1_sha256_2048_65537_v3_usr_crt.pem"

[Authenticate CSF]

[Install Key]
    # Key slot index used to authenticate the key to be installed
    Verification index = 0
    # Target key slot in HAB key store where key will be installed
    Target Index = 2
    # Key to install
    File= "../crts/IMG1_1_sha256_2048_65537_v3_usr_crt.pem"

[Authenticate Data]
    # Key slot index used to authenticate the image data
    Verification index = 2
    # This Authenticate Data command covers the IVT and DCD Data
    # The image file referenced will remain unmodified by CST
    Blocks = 0x877ff400 0x000 0xc00 "u-boot-dtb.imx"

[Install Secret Key]
    # Install the blob
    Verification Index = 0
    Target Index = 0
    Key = "dek.bin"
    Key Length = 128
    # Start address + padding 0x2000 + length
    Blob Address = 0x878a0000

[Decrypt Data]
    # The decrypt data command below causes CST to modify the input
    # file and encrypt the specified block of data. This image file
    # is a copy of the file used for the authentication command above
    Verification Index = 0
    Mac Bytes = 16
    Blocks = 0x87800000 0x00000c00 0x9e000 "u-boot-dtb.imx-enc"