Audio Aggregation Zero-Watermark Algorithm Based on (k,n/k=n)
This paper presents an audio aggregation zerowatermark algorithm based on (k, n/k=n), which using the nature of fragile watermark to realize audio aggregation certification. Firstly, using lifting wavelet transform (LWT) technique to each audio work in the aggregation which includes n audio works. Secondly, watermark was distributed into n shares by (k,n) threshold scheme. Finally, we can get n copies of key when the n shares are conducted bitwise XOR with the high-frequency coefficients of each audio work in the aggregation, then encrypting on them to form the final key. Simultaneously, realize zerowatermark embedding. In the watermark distributed process, in order to obtain better vulnerability, k is set as n. Simulation shows that the proposed algorithm has low computational complexity, high security, strong vulnerability, and good imperceptibility.
component audio aggregation zero-watermark (k n) threshold scheme authentication
Juan Li Rangding Wang
CKC Software Lab Ningbo University Ningbo, China
国际会议
2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)
大连
英文
2325-2329
2010-07-05（万方平台首次上网日期，不代表论文的发表时间）