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1 | package ro.pub.cs.pp.a51hadoop.algorithm; |
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2 | /* |
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3 | * A reduction function R that maps hash values back into secret values. |
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4 | * |
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5 | * There are many possible implementations for this function, and it's only |
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6 | * important that it behaves pseudorandomly. |
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7 | * |
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8 | * By alternating the hash function with the reduction function, |
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9 | * chains of alternating passwords and hash values are formed. |
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10 | */ |
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11 | public interface HashReducer |
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12 | { |
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13 | /* |
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14 | * Apply the current Reducer on the given hash. |
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15 | * |
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16 | * @return a new secret value |
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17 | */ |
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18 | public String apply(String txt); |
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19 | } |
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20 | |
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