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authorRob Austein <sra@hactrn.net>2017-09-13 11:28:13 -0400
committerRob Austein <sra@hactrn.net>2017-09-13 11:28:13 -0400
commit5522df4f68bfa66b9b4446fdfb92783694586f70 (patch)
treefa89fbd09f8ad3633b81de89ad8e2f973b6978f0 /last_gasp_pin_internal.h
parentae2985215d2329ac9663bbbedd925ec1b61cfaa1 (diff)
Sort-of-working, large (4096-bit) RSA keys broken.
Snapshot of mostly but not entirely working code to include the extra ModExpA7 key components in the keystore. Need to investigate whether a more compact representation is practical for these components, as the current one bloats the key object so much that a bare 4096-bit key won't fit in a single hash block, and there may not be enough room for PKCS #11 attributes even for smaller keys. If more compact representation not possible or insufficient, the other option is to double the size of a keystore object, making it two flash subsectors for a total of 8192 octets. Which would of course halve the number of keys we can store and require a bunch of little tweaks all through the ks code (particularly flash erase), so definitely worth trying for a more compact representation first.
Diffstat (limited to 'last_gasp_pin_internal.h')
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