On Tue, Aug 6, 2013 at 5:53 PM, Filipe Batista <[email protected]> wrote:
> Hello,
> I have a private key in the pem format ciphered with AES 128 that was
> generated using ECDSA.
> In Android how can i decipher the key and read it?

You will probably need more info to do this, but:
(this is not Android specific)

1. Find out (or derive) the AES key and IV
2. Decrypt the EC key blob
3. Find out its format, probably PKCS#8 and initialize the appropriate KeySpec
4. Use a KeyFactory to get PrivateKey and PublicKey from the KeySpec
5. Use keys with Signature, etc.

More info:

http://www.bouncycastle.org/wiki/display/JA1/Elliptic+Curve+Key+Pair+Generation+and+Key+Factories

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