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authorRob Austein <sra@hactrn.net>2017-03-01 14:10:31 -0500
committerRob Austein <sra@hactrn.net>2017-03-01 14:10:31 -0500
commit623ed007f5eb5fc66c24e0b3872d0912e11cf0ee (patch)
tree59907d09d202fdc142a397b44f90dff63c0a3f53 /logging.c
parent147208e5724d92f49f7252d0e877979ff4424173 (diff)
Compute public key if necessary when loading a private key.
libhal and PKCS #11 have slightly different models of private keys: in libhal, a "private key" object is really a keypair, while in PKCS #11 a private key really is a naked private key. This was a deliberate design decision in libhal, both for simplicity and to better support user interfaces other than PKCS #11, so we'd rather not change it. This difference doesn't matter very much for RSA keys in PKCS #11, where the private key components are a superset of the public key components anyway, but the PKCS #11 template for ECDSA private keys doesn't allow setting public key components with C_CreateObject(). Fortunately, computing the public components of an ECDSA key pair from the private key is straightforward, so we just do that when needed.
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