Digital signatures for network coding are described. In one aspect, digital signatures for network coding are described. In one aspect, segmented blocks of content for distribution are digitally signed using homomorphic digital signatures generated from an elliptic curve. A linear combination of packets comprising the digitally signed content is distributed to a destination device according to an implemented distribution scheme. The linear combination of packets includes public information when digitally signing the segmented blocks. The homomorphic digital signatures and the public information allow a device receiving one or more packets of the linear combination of packets to verify and authenticate content associated with the one of our packets independent of secure transmission of secret keys and hash digests used to digitally sign the one or more packets.