78 |
One-time Signatures |
One-time Signatures |
79 |
=================== |
=================== |
80 |
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|
81 |
Also, in practice, |
.. Also, in practice, |
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a cryptographic hash function is used in most |
a cryptographic hash function is used in most |
83 |
signature schemes anyway to map messages to a |
signature schemes anyway to map messages to a |
84 |
fixed-length digest, which is then signed. As |
fixed-length digest, which is then signed. As |
85 |
cryptographic hash functions are one-way, also using them |
cryptographic hash functions are one-way, also using them |
86 |
as the basis for signature avoids introducing additional |
as the basis for signature avoids introducing additional |
87 |
cryptographic primitives into the system. |
cryptographic primitives into the system. |
88 |
Additionally, operations on one-way signatures |
Additionally, operations on one-way signatures |
89 |
may be orders of magnitude faster than operations |
may be orders of magnitude faster than operations |
90 |
in schemes like DSA or RSA. |
in schemes like DSA or RSA. |
91 |
|
|
92 |
One-time signature schemes [XXX] are based |
One-time signature schemes [XXX] are based |
93 |
on one-way functions [#]_. |
on one-way functions [#]_. |