common: Split rwsig parts from rsa.h header

We're going to add more rwsig-related functions, and adding them
to rsa.h seems increasingly incorrect.

BRANCH=none
BUG=b:35587171
TEST=make buildall -j

Change-Id: I334c1774ce9a6ed8e219140f65ebe94d653e22d2
Reviewed-on: https://chromium-review.googlesource.com/468708
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

1 files changed, 0 insertions, 61 deletions

diff --git a/include/rsa.h b/include/rsa.h
index 5999159817..a2d5f73393 100644
--- a/include/rsa.h
+++ b/include/rsa.h
@@ -63,67 +63,6 @@ int rsa_verify(const struct rsa_public_key *key,
 	       const uint8_t *sha,
 	       uint32_t *workbuf32);
 
-void check_rw_signature(void);
-
 #endif /* !__ASSEMBLER__ */
 
-/*
- * The signer puts the public key and signature into the RO and RW images
- * (respectively) at known locations after the complete image is assembled. But
- * since we compile the RO & RW images separately, the other image's addresses
- * can't be computed by the linker. So we just hardcode the addresses here.
- * These can be overridden in board.h files if desired.
- */
-
-#ifndef CONFIG_RO_PUBKEY_SIZE
-#ifdef CONFIG_RWSIG_TYPE_RWSIG
-/*
- * rwsig type: 1024 bytes is enough to fit RSA-3072 public key.
- *
- * TODO(crosbug.com/p/62321): This still wastes space. We could pack the key at
- * any arbitrary location, but we need proper signer support to make sure it
- * can overwrite the key correctly.
- */
-#define CONFIG_RO_PUBKEY_SIZE 1024
-#else
-#define CONFIG_RO_PUBKEY_SIZE RSA_PUBLIC_KEY_SIZE
-#endif
-#endif /* ! CONFIG_RO_PUBKEY_SIZE */
-#ifndef CONFIG_RO_PUBKEY_ADDR
-#ifdef CONFIG_RWSIG_TYPE_RWSIG
-/* The pubkey goes at the end of the RO region */
-#define CONFIG_RO_PUBKEY_ADDR (CONFIG_PROGRAM_MEMORY_BASE	\
-			       + CONFIG_RO_MEM_OFF		\
-			       + CONFIG_RO_SIZE			\
-			       - CONFIG_RO_PUBKEY_SIZE)
-#else
-/*
- * usbpd1 type assumes pubkey location at the end of first half of flash,
- * which might actually be in the PSTATE region.
- */
-#define CONFIG_RO_PUBKEY_ADDR (CONFIG_PROGRAM_MEMORY_BASE	\
-			       + (CONFIG_FLASH_SIZE / 2)	\
-			       - CONFIG_RO_PUBKEY_SIZE)
-#endif
-#endif /* CONFIG_RO_PUBKEY_ADDR */
-
-#ifndef CONFIG_RW_SIG_SIZE
-#ifdef CONFIG_RWSIG_TYPE_RWSIG
-/*
- * rwsig type: futility expects signature to be 1024 bytes from the end of
- * the file.
- */
-#define CONFIG_RW_SIG_SIZE 1024
-#else
-#define CONFIG_RW_SIG_SIZE RSANUMBYTES
-#endif
-#endif /* ! CONFIG_RW_SIG_SIZE */
-#ifndef CONFIG_RW_SIG_ADDR
-/* The signature goes at the end of the RW region */
-#define CONFIG_RW_SIG_ADDR (CONFIG_PROGRAM_MEMORY_BASE	\
-			    + CONFIG_RW_MEM_OFF		\
-			    + CONFIG_RW_SIZE		\
-			    - CONFIG_RW_SIG_SIZE)
-#endif /* !CONFIG_RW_SIG_ADDR */
-
 #endif /* __CROS_EC_RSA_H */