| 41. | There are several other techniques in use; see cryptography.
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| 42. | Most importantly, this system does not rely on cryptography at all.
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| 43. | Exponentiation in finite fields has applications in public key cryptography.
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| 44. | DRM mechanisms also use certificates and asymmetric key cryptography in many cases.
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| 45. | Diffie left SAIL to pursue independent research in cryptography from May 1973.
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| 46. | Normally, there is an expansion of space requirement in visual cryptography.
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| 47. | Military cryptography had been officially deemphasized after the Civil War.
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| 48. | Until the 1970s, secure cryptography was largely the preserve of governments.
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| 49. | In cryptography, this attack is called a collision attack.
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| 50. | He has written extensively on the history of cryptography and military intelligence.
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