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doc: clarify openssl-based key and certificate generation process

Message ID 1458775450-25358-1-git-send-email-dannenberg@ti.com
State Accepted
Commit 4c1d5c29b5dec31f838dbe860ea682debaf27efe
Headers show

Commit Message

Andreas Dannenberg March 23, 2016, 11:24 p.m. UTC 
Add some basic clarification that the dev.key file generated by OpenSSL
contains both the public and private key, and further highlight that
the certificate generated here contains the public key only.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>

---
 doc/uImage.FIT/signature.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.6.4

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Patch

diff --git a/doc/uImage.FIT/signature.txt b/doc/uImage.FIT/signature.txt
index b2f89fc..e487401 100644
--- a/doc/uImage.FIT/signature.txt
+++ b/doc/uImage.FIT/signature.txt
@@ -62,14 +62,14 @@  placed alongside rsa.c, and its functions added to the table in image-sig.c
 also.
 
 
-Creating an RSA key and certificate
------------------------------------
-To create a new public key, size 2048 bits:
+Creating an RSA key pair and certificate
+----------------------------------------
+To create a new public/private key pair, size 2048 bits:
 
 $ openssl genpkey -algorithm RSA -out keys/dev.key \
     -pkeyopt rsa_keygen_bits:2048 -pkeyopt rsa_keygen_pubexp:65537
 
-To create a certificate for this:
+To create a certificate for this containing the public key:
 
 $ openssl req -batch -new -x509 -key keys/dev.key -out keys/dev.crt