What is is minimum possible number for an ECDSA private key?

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Private keys are 256 bit numbers. I know the max. possible number is something around:
115792089237316195423570985008687907852837564279074904382605163141518161494336



What about the min. number possible?



Thanks.






ecdsa







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    up vote
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    down vote

    favorite












    Private keys are 256 bit numbers. I know the max. possible number is something around:
    115792089237316195423570985008687907852837564279074904382605163141518161494336



    What about the min. number possible?



    Thanks.






    ecdsa







    share|improve this question























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      Private keys are 256 bit numbers. I know the max. possible number is something around:
      115792089237316195423570985008687907852837564279074904382605163141518161494336



      What about the min. number possible?



      Thanks.






      ecdsa







      share|improve this question













      Private keys are 256 bit numbers. I know the max. possible number is something around:
      115792089237316195423570985008687907852837564279074904382605163141518161494336



      What about the min. number possible?



      Thanks.






      ecdsa




      ecdsa






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 20 mins ago









      John Smith

      1526




      1526




















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          One is the minimum number. [This space intentionally left unblank.]





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            The all-zero bitstring doesn't have a corresponding public key per the standard (according to "Are all possible EC private keys valid?" on Crypto.SE), so it's 000…001.






            share|improve this answer




















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              One is the minimum number. [This space intentionally left unblank.]





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                One is the minimum number. [This space intentionally left unblank.]





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                  One is the minimum number. [This space intentionally left unblank.]





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                  One is the minimum number. [This space intentionally left unblank.]






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                  answered 9 mins ago









                  G. Maxwell

                  1,142117




                  1,142117




















                      up vote
                      1
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                      The all-zero bitstring doesn't have a corresponding public key per the standard (according to "Are all possible EC private keys valid?" on Crypto.SE), so it's 000…001.






                      share|improve this answer
























                        up vote
                        1
                        down vote













                        The all-zero bitstring doesn't have a corresponding public key per the standard (according to "Are all possible EC private keys valid?" on Crypto.SE), so it's 000…001.






                        share|improve this answer






















                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          The all-zero bitstring doesn't have a corresponding public key per the standard (according to "Are all possible EC private keys valid?" on Crypto.SE), so it's 000…001.






                          share|improve this answer












                          The all-zero bitstring doesn't have a corresponding public key per the standard (according to "Are all possible EC private keys valid?" on Crypto.SE), so it's 000…001.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered 10 mins ago









                          Murch♦

                          33.6k26109310




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