Method and system for generating verification codes

1. A method, comprising:

selecting one group of at least two verification code generators from a verification code generator set comprising a plurality of verification code generators to compose a current use set, wherein the verification code generator set includes a plurality of groups, wherein each group includes at least two verification code generators, wherein the at least two verification code generators includes a first verification code generator and a second verification code generator, wherein the first verification code generator and the second verification code generator each includes a numerical verification code generator, a Chinese verification code generator, a picture-based verification code generator, or an ASCII character verification code generator, the first verification code generator being different from the second verification code generator, and wherein the selecting of the one group of at least two verification code generators from the verification code generator set comprises:

determining a number of verification code generators for the one group of at least two verification code generators based on a high risk setting or a low risk setting, wherein the high risk setting relates to a number of login failures within a fixed time segment is equal to or exceeds a predetermined login failure threshold, wherein the low risk setting relates to a number of login failures within the fixed time segment fails to equal to or exceed the predetermined login failure threshold, and wherein the number of verification code generators associated with the high risk setting is greater than the number of verification code generators associated with the low risk setting;

executing each verification code generator in the current use set to obtain corresponding partial verification codes;

composing a current verification code from the partial verification codes;

outputting the current verification code to a user;

receiving a user response that is made in response to the current verification code; and

comparing the current verification code and the user response to determine whether the user is verified.

2. The method as described in claim 1 , wherein:

the pre-established screening techniques have varying levels of complexity; and

the specifying of the screening technique from the pre-established screening techniques includes: selecting the screening technique of a certain level of complexity based on historical behavior records of the user.

3. The method as described in claim 1 , wherein the composing of the current verification code from the partial verification codes comprises: composing the current verification code from the partial verification codes corresponding to a sequence of the at least two verification code generators in the current use set.

4. The method as described in claim 1 , further comprising: composing a current verification code checksum from partial verification code checksums generated by each verification code generator in the current use set.

5. The method as described in claim 1 , wherein at least two verification modes are used by the selected one group of at least two verification code generators in the current use set.

6. The method as described in claim 1 , wherein the plurality of pre-established screening techniques includes two or more of the following:

selecting two verification code generators;

selecting three verification code generators, wherein the three verification code generators includes at least two different verification modes; and/or selecting a first specific verification mode and a second specific verification mode.

7. A system, comprising:

a processor; and

a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to:

select one group of at least two verification code generators from a verification code generator set comprising a plurality of verification code generators to compose a current use set, wherein the verification code generator set includes a plurality of groups, wherein each group includes at least two verification code generators, wherein the at least two verification code generators includes a first verification code generator and a second verification code generator, wherein the first verification code generator and the second verification code generator each includes a numerical verification code generator, a Chinese verification code generator, a picture-based verification code generator, or an ASCII character verification code generator, the first verification code generator being different from the second verification code generator, and wherein the selecting of the one group of at least two verification code generators from the verification code generator set comprises:

determine a number of verification code generators for the one group of at least two verification code generators based on a high risk setting or a low risk setting, wherein the high risk setting relates to a number of login failures within a fixed time segment is equal to or exceeds a predetermined login failure threshold, wherein the low risk setting relates to a number of login failures within the fixed time segment fails to equal to or exceed the predetermined login failure threshold, and wherein a number of verification code generators associated with the high risk setting exceed a number of verification code generators associated with the low risk setting;

execute each verification code generator in the current use set to obtain corresponding partial verification codes;

compose a current verification code from the partial verification codes;

output the current verification code to a user;

receive a user response that is made in response to the current verification code; and

compare the current verification code and the user response to determine whether the user is verified.

8. The system as described in claim 7 , wherein:

the pre-established screening techniques have varying levels of complexity; and

the specifying of the screening technique from the pre-established screening techniques includes: selecting the screening technique of a certain level of complexity based on historical behavior records of the user.

9. The system as described in claim 7 , wherein the composing of the current verification code from the partial verification codes comprises to: compose the current verification code from the partial verification codes corresponding to a sequence of the at least two verification code generators in the current use set.

10. The system as described in claim 7 , wherein the processor is further configured to:

compose a current verification code checksum from partial verification code checksums generated by each verification code generator in the current use set.

11. A computer program product being embodied in a tangible non-transitory computer readable storage medium and comprising computer instructions for:

selecting one group of at least two verification code generators from a verification code generator set comprising a plurality of verification code generators to compose a current use set, wherein the verification code generator set includes a plurality of groups, wherein each group includes at least two verification code generators, wherein the at least two verification code generators includes a first verification code generator and a second verification code generator, wherein the first verification code generator and the second verification code generator each includes a numerical verification code generator, a Chinese verification code generator, a picture-based verification code generator, or an ASCII character verification code generator, the first verification code generator being different from the second verification code generator, and wherein the selecting of the one group of at least two verification code generators from the verification code generator set comprises:

determining a number of verification code generators for the one group of at least two verification code generators based on a high risk setting or a low risk setting, wherein the high risk setting relates to a number of login failures within a fixed time segment is equal to or exceeds a predetermined login failure threshold, wherein the low risk setting relates to a number of login failures within the fixed time segment fails to equal to or exceed the predetermined login failure threshold, and wherein a number of verification code generators associated with the high risk setting exceed a number of verification code generators associated with the low risk setting;

executing each verification code generator in the current use set to obtain corresponding partial verification codes;

composing a current verification code from the partial verification codes;

outputting the current verification code to a user;

receiving a user response that is made in response to the current verification code; and

comparing the current verification code and the user response to determine whether the user is verified.

12. The computer program product as described in claim 11 , wherein:

the pre-established screening techniques have varying levels of complexity; and

the specifying of the screening technique from the pre-established screening techniques includes: selecting the screening technique of a certain level of complexity based on historical behavior records of the user.

13. The computer program product as described in claim 11 , wherein the composing of the current verification code from the partial verification codes comprises: composing the current verification code from the partial verification codes corresponding to a sequence of the at least two verification code generators in the current use set.

14. The computer program product as described in claim 11 , further comprising: composing a current verification code checksum from partial verification code checksums generated by each verification code generator in the current use set.

15. The computer program product as described in claim 11 , wherein at least two verification modes are used by the selected one group of at least two verification code generators in the current use set.