Bad base64 Decode - M2Crypto - Python - Android - RSA

Question

Trying to implement the signature verification of inapp billing on my server (Django/Python).

I found this great topic but I'm having issues with this line:

rsa = RSA.load_pub_key_bio(bio)

If I do it exactly as it is coded there I get a "RSAError: no start line" [and this makes sense since python didnt really like how pem was defined]

I decided to put my key into a .pem file and load it with

rsa = RSA.load_pub_key("public.pem")

However, I get a "RSAError: bad base64 decode" . Any ideas?

Maybe have a look here http://stackoverflow.com/questions/1327211/file-accessing-in-load-pub-key — Jingo, Jan 31 '12 at 21:22

score 2 · Accepted Answer · answered Jan 31 '12 at 22:03

2

Okay, found and fixed my problem (but an explanation would be neat).

I had to have a \n every 75 chars ... formatting it like this made it work.

answered Jan 31 '12 at 22:03

IamAlexAlright

I looked up base64 and found that in some cases it has a maximum encoded line lenght – Facundo Casco Feb 28 '16 at 15:14

1 Answers1