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EURASIP Journal on Advances in Signal Processing

Table 2 Comparison of keyspace size and compression ratio

From: Scrambling-based speech encryption via compressed sensing

 

Proposed

Hadamard [[4]]

Latin Square [[6]]

ASVDS [[7]]

Chaos [[12]]

Keyspace

O(10n 2)

O(10n(n!)2

O(10120)

O(n2)

O(1064)

Compression ratio

≪1:1

1:1

1:1

1:1

1:1

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