Abstract: The present invention relates to novel compounds that contain PNA units substituted with phosphonic acid ester functions or phosphonic acid functions, and have at least one chiral center. The compounds may be used for the treatment of viral diseases, such as AIDS.

Abstract: The invention relates to new peptide nucleic acid monomers and peptide nucleic acid oligomers comprising a dialkylamine side chain substituted with phosphonic acid ester group(s) or phosphonic acid group(s), and to the uses thereof.

Abstract: The present invention relates to novel compounds that contain PNA units substituted with phosphonic acid ester functions or phosphonic acid functions, and have at least one chiral center. The compounds may be used for the treatment of viral diseases, such as AIDS.

Abstract: A cryptographic unit includes a first processing unit for determining an output signal on the basis of the AES algorithm and for determining a first comparison signal, a second processing unit for determining a second comparison signal, and a release unit for providing the output signal, wherein the release unit is designed to perform a defense measure against an external tapping of the output signal when the first comparison signal is not related to the second comparison signal in a predetermined relationship. The first comparison signal is determined in a different way as compared to the second comparison signal, so that, in the case of the injection of faults into the cryptographic unit, these faults may be detected very easily.

Abstract: An apparatus for providing a random bit stream includings a first provider for providing a clock signal, a second provider for providing a sample signal, an activator for activating the first and second providers such that a sampling edge of the sample signal is aligned to an edge of the clock signal. The apparatus further includes a sampler for sampling the clock signal responsive to the sampling edge of the sample signal and for generating a random bit dependent on the sampled state of the clock signal. Further, the apparatus includes a deactivator for deactivating the first and second providers. Successive random bits form a random bit stream.

Abstract: The present invention relates to novel compounds that contain PNA units substituted with phosphonic acid ester functions or phosphonic acid functions, and have at least one chiral center. The compounds may be used for the treatment of viral diseases, such as AIDS.

Abstract: A cryptographic unit includes a first processing unit for determining an output signal on the basis of the AES algorithm and for determining a first comparison signal, a second processing unit for determining a second comparison signal, and a release unit for providing the output signal, wherein the release unit is designed to perform a defense measure against an external tapping of the output signal when the first comparison signal is not related to the second comparison signal in a predetermined relationship. The first comparison signal is determined in a different way as compared to the second comparison signal, so that, in the case of the injection of faults into the cryptographic unit, these faults may be detected very easily.

Abstract: Master-slave flip flop including a master latch having a data input for receiving a data input signal, an inverting clock input for receiving a first clock signal, and a data output, a slave latch having a data input which is connected to the data output of the master latch, a clock input for receiving a second clock signal, and a data output for outputting an output signal, and a time delay element connects the clock input of the slave latch to the clock input of the master latch.

Abstract: An apparatus for providing a random bit stream includings a first provider for providing a clock signal, a second provider for providing a sample signal, an activator for activating the first and second providers such that a sampling edge of the sample signal is aligned to an edge of the clock signal. The apparatus further includes a sampler for sampling the clock signal responsive to the sampling edge of the sample signal and for generating a random bit dependent on the sampled state of the clock signal. Further, the apparatus includes a deactivator for deactivating the first and second providers. Successive random bits form a random bit stream.

Abstract: A logic circuit includes an input for one or several input operands, an output for a result and an inverted result, a first circuit branch with a first logic assembly, which is coupled to the input and the output, to calculate the result, as well as a second circuit branch with a second logic assembly, which is coupled to the input and the output, to calculate the inverted result, wherein the first logic assembly and the second logic assembly have different run times for calculating the result and the inverted result, respectively. Further, a delay circuit and a compensation circuit, respectively, are provided in the first and/or second circuit branch to reduce a difference of the run times and the power consumptions, respectively, of the first and the second circuit branch.

Abstract: The invention relates to novel oligomers containing PNA units that are substituted by phosphite ester, phosphonic acid, or carbaborane functions and PNA monomers that are substituted by phosphite ester, phosphonic acid, or carbaborane functions, from which the novel oligomers are produced.

Abstract: In a device for calculating encrypted data from plaintext data or plaintext data from encrypted data, in which a cryptographic algorithm having an initial stage, an intermediate stage or final stage and an intermediate stage upstream of the final stage is implemented, the processor for performing the cryptographic algorithm is formed such that it performs either the initial stage or the final stage or both the initial stage and the final stage in a manner protected against a cryptographic attack, whereas the intermediate stage is performed in a manner unprotected against a cryptographic attack.

Abstract: A logic circuit includes an input for one or several input operands, an output for a result and an inverted result, a first circuit branch with a first logic assembly, which is coupled to the input and the output, to calculate the result, as well as a second circuit branch with a second logic assembly, which is coupled to the input and the output, to calculate the inverted result, wherein the first logic assembly and the second logic assembly have different run times for calculating the result and the inverted result, respectively. Further, a delay circuit and a compensation circuit, respectively, are provided in the first and/or second circuit branch to reduce a difference of the run times and the power consumptions, respectively, of the first and the second circuit branch.

Abstract: The present invention relates to compounds of the general formula I wherein A is a group of the formula and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.

Abstract: The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.