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1. 发明申请

US20060069706A1 Random number generator and method for generating random numbers 有权
公开(公告)号：US20060069706A1
公开(公告)日：2006-03-30
申请号：US11238158
申请日：2005-09-28
申请人： Dejan Lazich , Herbert Alrutz , Miodrag Temerinac , Steffen Schober
发明人： Dejan Lazich , Herbert Alrutz , Miodrag Temerinac , Steffen Schober
IPC分类号： G06F7/58
CPC分类号： H04L9/0861 , G06F7/588 , H03K3/84
摘要： The invention relates to a method for generating random numbers in which oscillating digital output signals (A1, A2, . . . , AL) of unequal or equal periodicity are generated by at least two ring oscillators (32, 33, 34), an external parity signal (PS) representing a logical state (“0,” “1”) being generated when an odd number of the output signals (A1, A2, . . . , AL) take on a specified logical state (“1”). According to the invention, the external parity signal (PS) is fed back to an external parity input (36, 37, 38) of each of the respective ring oscillators (32, 33, 34). The invention further relates to a random number generator having at least two ring oscillators (32, 33, 34), made up in particular of independently free-running inverter chains with feedback having an odd number (K) of series-connected inverters (inv1,2, inv2,1, inv3,1, . . . , invi,j, . . . , invL,KL) that generate oscillating digital output signals (A1, A2, . . . , AL) of unequal or equal periodicity, and having first parity signal generating means (XOR) that generate an external parity signal (PS) representing a logical state (“0,” “1”) when an odd number of the output signals (A1, A2, . . . , AL) take on a specified logical state (“1”). According to the invention, there are feedback means (xor1, xor2, xor3, xor4, . . . , xorL) that feed back the external parity signal (PS) to an external parity input (36, 37, 38) of each of the respective ring oscillators (32, 33, 34). In this invention the cooperation of chaotic dynamics (feedback of the parity signal) and true randomness (jitter due to thermal noise) in digital circuits, a novel theoretical principle for generating random numbers, has been made into an efficient practical solution.

2. 发明授权

US07797361B2 System and method for generating random numbers using parity feedback 有权
标题翻译：使用奇偶校验反馈产生随机数的系统和方法
公开(公告)号：US07797361B2
公开(公告)日：2010-09-14
申请号：US11238158
申请日：2005-09-28
申请人： Dejan Lazich , Herbert Alrutz , Miodrag Temerinac , Steffen Schober
发明人： Dejan Lazich , Herbert Alrutz , Miodrag Temerinac , Steffen Schober
IPC分类号： G06F7/58 , H03B29/00
CPC分类号： H04L9/0861 , G06F7/588 , H03K3/84
摘要： A method for generating random numbers in which oscillating digital output signals of unequal or equal periodicity are generated by at least two ring oscillators, an external parity signal representing a logical state being generated when an odd number of the output signals take on a specified logical state, the external parity signal being fed back to an external parity input of each of the respective ring oscillators. Also, a random number generator having at least two ring oscillators made up of independently freewnning inverter chains with feedback having an odd number of series-connected inverters that generate oscillating digital output signals of unequal or equal periodicity, and having first panty signal generating mechanisms that generate an external parity signal representing a logical state when an odd number of the output signals take on a specified logical state.
摘要翻译：一种用于产生随机数的方法，其中由至少两个环形振荡器产生不等或相等周期的振荡数字输出信号，表示当奇数个输出信号具有指定逻辑状态时产生的逻辑状态的外部奇偶校验信号，外部奇偶校验信号被反馈到每个相应的环形振荡器的外部奇偶校验输入。另外，具有至少两个环形振荡器的随机数发生器，该环形振荡器由具有奇数个串联连接的反相器的反馈链独立地形成，产生具有不等周期或等周期的振荡数字输出信号，并且具有第一内裤信号产生机构，当奇数个输出信号采取指定的逻辑状态时，产生表示逻辑状态的外部奇偶校验信号。

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