Add support for TBBR using ECDSA keys in ARM platforms
- fixed compile error when KEY_ALG=ecdsa
- add new option ecdsa for TF_MBEDTLS_KEY_ALG
- add new option devel_ecdsa for ARM_ROTPK_LOCATION
- add ecdsa key at plat/arm/board/common/rotpk/
- reduce the mbedtls heap memory size to 13k
Change-Id: I3f7a6170af93fdbaaa7bf2fffb4680a9f6113c13
Signed-off-by: Qixiang Xu <qixiang.xu@arm.com>
diff --git a/plat/arm/board/common/board_arm_trusted_boot.c b/plat/arm/board/common/board_arm_trusted_boot.c
index 5d36d17..6c03c91 100644
--- a/plat/arm/board/common/board_arm_trusted_boot.c
+++ b/plat/arm/board/common/board_arm_trusted_boot.c
@@ -18,6 +18,7 @@
/* ROTPK locations */
#define ARM_ROTPK_REGS_ID 1
#define ARM_ROTPK_DEVEL_RSA_ID 2
+#define ARM_ROTPK_DEVEL_ECDSA_ID 3
static const unsigned char rotpk_hash_hdr[] = \
"\x30\x31\x30\x0D\x06\x09\x60\x86\x48" \
@@ -41,6 +42,12 @@
"\x37\x7A\x72\x47\x1B\xEC\x32\x73" \
"\xE9\x92\x32\xE2\x49\x59\xF6\x5E" \
"\x8B\x4A\x4A\x46\xD8\x22\x9A\xDA";
+#elif (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_ECDSA_ID)
+static const unsigned char arm_devel_rotpk_hash[] = \
+ "\x2E\x40\xBF\x6E\xF9\x12\xBB\x98" \
+ "\x31\x71\x09\x0E\x1E\x15\x3D\x0B" \
+ "\xFD\xD1\xCC\x69\x4A\x98\xEB\x8B" \
+ "\xA0\xB0\x20\x86\x4E\x6C\x07\x17";
#endif
/*
@@ -69,7 +76,8 @@
memcpy(rotpk_hash_der, rotpk_hash_hdr, rotpk_hash_hdr_len);
dst = (uint8_t *)&rotpk_hash_der[rotpk_hash_hdr_len];
-#if (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_RSA_ID)
+#if (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_RSA_ID) \
+ || (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_ECDSA_ID)
memcpy(dst, arm_devel_rotpk_hash, SHA256_BYTES);
#elif (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_REGS_ID)
uint32_t *src, tmp;
@@ -121,7 +129,8 @@
*dst++ = (uint8_t)((tmp >> 8) & 0xFF);
*dst++ = (uint8_t)(tmp & 0xFF);
}
-#endif /* (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_RSA_ID) */
+#endif /* (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_RSA_ID) \
+ || (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_ECDSA_ID) */
*key_ptr = (void *)rotpk_hash_der;
*key_len = (unsigned int)sizeof(rotpk_hash_der);
diff --git a/plat/arm/board/common/board_common.mk b/plat/arm/board/common/board_common.mk
index 4667298..643047c 100644
--- a/plat/arm/board/common/board_common.mk
+++ b/plat/arm/board/common/board_common.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -22,7 +22,11 @@
ifeq (${ARM_ROTPK_LOCATION}, regs)
ARM_ROTPK_LOCATION_ID = ARM_ROTPK_REGS_ID
else ifeq (${ARM_ROTPK_LOCATION}, devel_rsa)
+ KEY_ALG := rsa
ARM_ROTPK_LOCATION_ID = ARM_ROTPK_DEVEL_RSA_ID
+ else ifeq (${ARM_ROTPK_LOCATION}, devel_ecdsa)
+ KEY_ALG := ecdsa
+ ARM_ROTPK_LOCATION_ID = ARM_ROTPK_DEVEL_ECDSA_ID
else
$(error "Unsupported ARM_ROTPK_LOCATION value")
endif
diff --git a/plat/arm/board/common/rotpk/arm_rotpk_ecdsa.der b/plat/arm/board/common/rotpk/arm_rotpk_ecdsa.der
new file mode 100644
index 0000000..2547877
--- /dev/null
+++ b/plat/arm/board/common/rotpk/arm_rotpk_ecdsa.der
Binary files differ
diff --git a/plat/arm/board/common/rotpk/arm_rotpk_ecdsa_sha256.bin b/plat/arm/board/common/rotpk/arm_rotpk_ecdsa_sha256.bin
new file mode 100644
index 0000000..c5e123a
--- /dev/null
+++ b/plat/arm/board/common/rotpk/arm_rotpk_ecdsa_sha256.bin
@@ -0,0 +1 @@
+.@¿nù»1q =ýÑÌiJë ° Nl
\ No newline at end of file
diff --git a/plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem b/plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem
new file mode 100644
index 0000000..fb328e3
--- /dev/null
+++ b/plat/arm/board/common/rotpk/arm_rotprivk_ecdsa.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEINSaX6nvzS3teiBJA7WlTLRKJOajpy29o2cArLbUXoZBoAoGCCqGSM49
+AwEHoUQDQgAEm+ZIvTQ44aKk83DhVLsvsFpKDP/Ch9vA+4Hp+fmVfX6gDH8K1OBi
+SpRf7FJ9RGPIn2H6xst+a1OtLMWUDRqGkQ==
+-----END EC PRIVATE KEY-----
diff --git a/plat/arm/board/juno/platform.mk b/plat/arm/board/juno/platform.mk
index 79916cd..5cd125b 100644
--- a/plat/arm/board/juno/platform.mk
+++ b/plat/arm/board/juno/platform.mk
@@ -91,6 +91,3 @@
include plat/arm/soc/common/soc_css.mk
include plat/arm/css/common/css_common.mk
-ifeq (${KEY_ALG},ecdsa)
- $(error "ECDSA key algorithm is not fully supported on Juno.")
-endif