-
公开(公告)号：EP4231583A1
公开(公告)日：2023-08-23
申请号：EP22157019.5
申请日：2022-02-16
发明人： KÄRKKÄINEN, Tuomas
IPC分类号： H04L9/32
摘要： An arrangement comprises a random data generator (101) for producing a crypto seed (102, P U0 ), and may use a secure transport mechanism (120). The arrangement may produce, through a first cryptographic operation (104, 204), a cryptographic intermediate product (105) that is deterministically dependent on both said crypto seed (102, P U0 ) and a user's secret (113, USS) received through said secure transport mechanism (120). This cryptographic intermediate product (105) constitutes a digital identity of said party. A second cryptographic operation (106) uses said digital identity (105) of said party to produce a cryptographic output (107) including said crypto seed (102, P U0 ) in encrypted form. The arrangement is transmits at least part of said cryptographic output (107) through said secure transport mechanism (120).
-
公开(公告)号：EP3782334A1
公开(公告)日：2021-02-24
申请号：EP19722006.4
申请日：2019-04-18
发明人： KÄRKKÄINEN, Tuomas , SAHLBOM, Mikko
-
公开(公告)号：EP3178190B1
公开(公告)日：2018-10-10
申请号：EP15763204.3
申请日：2015-08-07
发明人： KÄRKKÄINEN, Tuomas
CPC分类号： H04L63/0428 , H04L9/0618 , H04L9/0637 , H04L9/0662 , H04L9/0819 , H04L9/12 , H04L2209/125
摘要： A method of encoding and encrypting input data (D1) to generate corresponding encoded and encrypted data (E2) is provided. At least a first data block of the input data (D1) is encoded to generate a first encoded data block. The at least first encoded data block is then encrypted using at least one key to provide a first encoded and encrypted data block for inclusion in the encoded and encrypted data (E2). Moreover, a first seed value is generated for use in encrypting a next encoded data block to provide a next encoded and encrypted data block for inclusion in the encoded and encrypted data (E2). Furthermore, a next seed value is generated for use in encrypting a subsequent encoded data block, in a sequential repetitive manner until each data block of the input data (D1) is encoded and encrypted into the encoded and encrypted data (E2).
-
公开(公告)号：EP3172897A1
公开(公告)日：2017-05-31
申请号：EP15762489.1
申请日：2015-07-21
发明人： KALEVO, Ossi
IPC分类号： H04N19/503 , H04N19/593 , H04N19/91
CPC分类号： H04N19/51 , H04N19/107 , H04N19/124 , H04N19/503 , H04N19/593 , H04N19/91
摘要： There is provided an encoder for encoding input data to generate corresponding encoded data. The encoder is operable to process the input and to encode at least a portion thereof using at least one Delta encoding algorithm, and to generate one or more predictors for use in encoding one or more subsequent portions of the input data, wherein the encoder is also operable to encode data generated by the at least one Delta encoding algorithm and the one or more predictors by employing at least one entropy encoding algorithm to generate the encoded data. There is provided a decoder for decoding the encoded data to generate corresponding decoded data; optionally, the decoded data and the input data are mutually similar.
摘要翻译： 通过使用ODelta编码算法对输入数据的至少一部分进行编码并且生成用于编码输入数据D1的后续部分的一个或多个预测器来编码输入数据D1。 编码器100还使用熵编码算法来产生编码数据E2。 包括对应的解码方法和装置120以返回解码数据D3。 ODelta编码将一种形式的差分或和编码应用于输入数据，并将得到的数据值进行环绕模运算以产生所选最小值和最大值之间的值。 优选地，编码器采用量化算法来提供输入数据D1的有损编码。 编码器可以使用不同的算法来编码来自不同数据结构的数据，这些数据结构可以是诸如YUV或RGB的颜色通道。 熵编码可以是DC方法，滑动方法，多级方法，DCT方法，行方法，缩放方法，数据库方法，范围编码霍夫曼编码，游程编码RLE或SLRE编码。 可以使用速率失真RD优化，其中失真是平方和误差。 所公开的方法可以应用于视频或图像数据的块。
-
公开(公告)号：EP2962399A1
公开(公告)日：2016-01-06
申请号：EP14714582.5
申请日：2014-03-01
发明人： KALEVO, Ossi , KARKKAINEN, Tuomas
摘要： An encoder is provided for encoding input data (D1) to generate corresponding encoded output data (D2). The encoder includes a data processing arrangement for generating a run-length encoded (RLE) representation of the input data (D1). Moreover, the encoder is operable to split the run-length encoded (RLE) representation into a plurality of parts (A, B), wherein at least one part is associated with original symbols and at least another part is associated with counters representative of occurrence of the original symbols. Furthermore, the encoder is operable to encode the plurality of parts (A, B) separately to generate the encoded output data (D2). There is also provided a corresponding decoder for decoding the encoded data (D2) to generate corresponding decoded output data (D3). Additionally, there is provided a coder including the aforesaid encoder and decoder.
-
公开(公告)号：EP2962396A1
公开(公告)日：2016-01-06
申请号：EP14713379.7
申请日：2014-03-01
发明人： KALEVO, Ossi
IPC分类号： H03M7/30
CPC分类号： H03M7/3068
摘要： There is provided an entropy modifier (10, 60) which is operable to encode, alternatively decode, a stream of input data bits having a first entropy for generating corresponding entropy-modified output data having a second entropy, wherein the entropy modifier is operable to process the stream of input data bits to handle groups of mutually similar bits and the value of the first bit, and one or more maximum run lengths of the groups of mutually similar bits. Optionally, the entropy modifier (10, 60) is operable to control one or more maximum run lengths of the groups of mutually similar bits by using at least one escape code.
摘要翻译： 提供了一种熵修改器（10,60），其可操作来对具有第一熵的输入数据比特流进行交替地解码以用于生成具有第二熵的对应的熵修改的输出数据，其中，所述熵修改器可操作用于： 处理输入数据比特流以处理相互相似的比特组和第一比特的值以及相互相似比特组的一个或多个最大游程长度。 可选地，熵修改器（10,60）可操作以通过使用至少一个转义码来控制相互相似的比特组的一个或多个最大游程长度。
-
公开(公告)号：EP2933987A1
公开(公告)日：2015-10-21
申请号：EP14165113.3
申请日：2014-04-17
发明人： Kärkkäinen, Tuomas , Kalevo, Ossi
摘要： To provide a called one with information on the caller, a reference to a resource containing information on the caller, or the information, is transmitted with a connection establishment request, and the content in the resource or the received information is displayed to the called one before the requested connection is established so that the called one can make a decision whether or not to answer the call.
摘要翻译： 为了提供一个具有呼叫者信息的呼叫者，通过连接建立请求发送对包含呼叫者信息的资源或信息的引用，资源中的内容或接收到的信息被显示给被叫方 在所请求的连接建立之前，使得所呼叫的连接可以做出是否应答呼叫的决定。
-
公开(公告)号：EP2661081B1
公开(公告)日：2015-03-04
申请号：EP12173534.4
申请日：2012-06-26
发明人： Kärkkäinen, Tuomas , Kalevo, Ossi
IPC分类号： H04N19/85
CPC分类号： H04N19/85
-
9.发明公开Communications using at least two different media types 有权KOMMUNIKATIONEN UNTER VERWENDUNG VON MINDESTENS ZWEI VERSCHIEDENEN MEDIENTYPEN
公开(公告)号：EP2797279A1
公开(公告)日：2014-10-29
申请号：EP13164918.8
申请日：2013-04-23
IPC分类号： H04L29/06
CPC分类号： H04N7/15 , H04L65/1089 , H04L65/403
摘要： To avoid unnecessary release and reestablishment of a connection the connection is maintained but two or more media streams relating to a communication over the connection are blocked from the apparatus and/or to the apparatus in response to receiving information indicating that the two or more media streams relating to the communication are to be blocked.
摘要翻译： 为了避免不必要的释放和重新建立连接，连接被维持，但是关于通过连接的通信的两个或多个媒体流被响应于接收到指示两个或多个媒体流的信息从设备和/或设备被阻止 与通信有关的信息将被阻止。
-
公开(公告)号：EP4283918A1
公开(公告)日：2023-11-29
申请号：EP22175341.1
申请日：2022-05-25
发明人： KÄRKKÄINEN, Tuomas
摘要： An arrangement for establishing a digital crypto group comprises a cryptographic engine configured to produce cryptoproducts from given input data. Said cryptographic engine responds to receiving, through a secure transport mechanism, requests containing user identifiers by producing a cryptoproduct. It also responds to receiving, through said secure transport mechanism, a subsequent second request containing one of said plurality of user identifiers by transmitting said cryptoproduct through said secure transport mechanism. Said cryptoproduct is a digital crypto group that contains said plurality of user identifiers and a common cryptographic key for use in symmetric cryptography between users identified by said plurality of user identifiers and/or user-specific and user-identifier-related public keys for use in asymmetric cryptography in communications between users identified by said plurality of user identifiers.
-
-
-
-
-
-
-
-
-
搜索结果
66 条记录 (耗时 0.024 秒)
