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IMAGE_MAGIC = 0x96f3b83
IMAGE_MAGIC_NONE = 0xffffffff
#
# Image header flags.
#
IMAGE_F_PIC = 0x00000001
IMAGE_F_SHA256 = 0x00000002 # Image contains hash TLV
IMAGE_F_PKCS15_RSA2048_SHA256 = 0x00000004 # PKCS15 w/RSA and SHA
IMAGE_F_ECDSA224_SHA256 = 0x00000008 # ECD
IMAGE_HEADER_SIZE = 32
# Digest sizes
SHA256_DIGEST_SIZE = 32
#
# Image trailer TLV types.
#
IMAGE_TLV_SHA256 = 1 # SHA256 of image hdr and body
IMAGE_TLV_RSA2048 = 2 # RSA2048 of hash output
IMAGE_TLV_ECDSA224 = 3 # ECDSA of hash output
OFFSET_IH_MAGIC = 0
OFFSET_IH_TLV_SIZE = 4
OFFSET_IH_KEY_ID = 6
OFFSET_IH_PAD1 = 7
OFFSET_IH_HDR_SIZE = 8
OFFSET_IH_PAD2 = 10
OFFSET_IH_IMG_SIZE = 12
OFFSET_IH_FLAGS = 16
OFFSET_IH_VER_MAJOR = 20
OFFSET_IH_VER_MINOR = 21
OFFSET_IH_REVISION = 22
OFFSET_IH_BUILD_NUM = 24
OFFSET_IH_PAD3 = 28
#struct image_version { uint8_t iv_major; uint8_t iv_minor; uint16_t iv_revision;
# uint32_t iv_build_num;
#};
#
#/** Image header. All fields are in little endian byte order. */
#struct image_header {
# uint32_t ih_magic;
# uint16_t ih_tlv_size; /* Trailing TLVs */
# uint8_t ih_key_id;
# uint8_t _pad1;
# uint16_t ih_hdr_size;
# uint16_t _pad2;
# uint32_t ih_img_size; /* Does not include header. */
# uint32_t ih_flags;
# struct image_version ih_ver;
# uint32_t _pad3;
#};
#
#/** Image trailer TLV format. All fields in little endian. */
#struct image_tlv {
# uint8_t it_type;
# uint8_t _pad;
# uint16_t it_len;
#};
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